原子鐘 (Chinese Wikipedia)

Analysis of information sources in references of the Wikipedia article "原子鐘" in Chinese language version.

Last modified: 16:45:44, 3 July 2025 (UTC)

Ref.Un. Ref.Website

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5046web.archive.org

1^st place

97nist.gov

708^th place

719^th place

33gsc-europa.eu

low place

33unoosa.org

low place

7,797^th place

32europa.eu

62^nd place

150^th place

22doi.org

2^nd place

5^th place

22uscg.gov

low place

22esa.int

1,073^rd place

1,006^th place

22spectratime.com

low place

22bbc.co.uk

11^th place

28^th place

21symmetricom.com

low place

11books.google.com

3^rd place

6^th place

11nature.com

207^th place

205^th place

11worldcat.org

4^th place

11archive.org

6^th place

2^nd place

11adsabs.harvard.edu

14^th place

27^th place

11zhihu.com

8,156^th place

676^th place

11chinadmd.com

low place

11bipm.org

1,781^st place

1,789^th place

11bbc.com

26^th place

38^th place

11ltn.com.tw

342^nd place

10^th place

11gov.cn

1,182^nd place

58^th place

11xinhuanet.com

271^st place

19^th place

11people.com.cn

295^th place

17^th place

11antpedia.com

low place

11nim.ac.cn

low place

11gps.gov

low place

11allanstime.com

low place

11pdana.com

low place

11galleon.eu.com

low place

11qps.nl

low place

11af.mil

414^th place

730^th place

11navipedia.net

low place

11spacecorp.ru

low place

11insidegnss.com

low place

11beidou.gov.cn

low place

7,318^th place

11livemint.com

749^th place

2,390^th place

11reuters.com

38^th place

61^st place

adsabs.harvard.edu (Global: 14^th place; Chinese: 27^th place)

ui.adsabs.harvard.edu

W. Markowitz, R.G. Hall, L. Essen, J.V.L. Parry. Frequency of cesium in terms of ephemeris time. Physical Review Letters. 1958, 1: 105–107. Bibcode:1958PhRvL...1..105M. doi:10.1103/PhysRevLett.1.105.

af.mil (Global: 414^th place; Chinese: 730^th place)

gps.afspc.af.mil

Notice Advisory to Navstar Users (NANU) 2012034. GPS Operations Center. 2012-05-30 [2012-07-02]. （原始内容存档于2013-04-08）. |dead-url=和|url-status=只需其一 (帮助)

allanstime.com (Global: low place; Chinese: low place)

David W. Allan. The Science of Timekeeping (PDF). Hewlett Packard. 1997 [2020-10-25]. （原始内容存档 (PDF)于2012-10-25）.

antpedia.com (Global: low place; Chinese: low place)

m.antpedia.com

争相制造世界第一个核时钟或将颠覆原子钟黄金标准. 分析測試百科網. 2019-09-12 [2020-12-09]. （原始内容存档于2021-06-02）.

archive.org (Global: 6^th place; Chinese: 2^nd place)

W. Markowitz, R.G. Hall, L. Essen, J.V.L. Parry. Frequency of cesium in terms of ephemeris time. Physical Review Letters. 1958, 1: 105–107. Bibcode:1958PhRvL...1..105M. doi:10.1103/PhysRevLett.1.105.

bbc.co.uk (Global: 11^th place; Chinese: 28^th place)

China GPS rival Beidou starts offering navigation data. BBC. 2011-12-27 [2020-10-25]. （原始内容存档于2012-02-03）.
China's Beidou GPS-substitute opens to public in Asia. BBC. 2012-12-27 [2012-12-27]. （原始内容存档于2012-12-27）.

bbc.com (Global: 26^th place; Chinese: 38^th place)

英国原子钟“世界上最准确”. BBC 中文網. 2011-08-26 [2020-06-04]. （原始内容存档于2021-01-07）.

beidou.gov.cn (Global: low place; Chinese: 7,318^th place)

interact.beidou.gov.cn

China Satellite Navigation Office, Version 2.0, December 2013^{[永久失效連結]}

bipm.org (Global: 1,781^st place; Chinese: 1,789^th place)

webtai.bipm.org

Evaluation of the frequency of the H-maser 1401708 by the primary frequency standard NPL-CsF2 (PDF). National Physical Laboratory. 2011-09-01 [2022-07-10]. （原始内容存档 (PDF)于2022-01-21）.

books.google.com (Global: 3^rd place; Chinese: 6^th place)

Sir William Thomson (Lord Kelvin) and Peter Guthrie Tait, Treatise on Natural Philosophy, 2nd ed. (Cambridge, England: Cambridge University Press, 1879), vol. 1, part 1, page 227 （页面存档备份，存于互联网档案馆）.

chinadmd.com (Global: low place; Chinese: low place)

网站防火墙. www.chinadmd.com. [2018-04-27]. （原始内容存档于2018-06-12）.

doi.org (Global: 2^nd place; Chinese: 5^th place)

L. ESSEN, J. V. L. PARRY. An Atomic Standard of Frequency and Time Interval: A Cæsium Resonator. Nature. 1955/08, 176 (4476): 280–282 [2018-04-02]. ISSN 1476-4687. doi:10.1038/176280a0 （英语）. 请检查|date=中的日期值 (帮助)
W. Markowitz, R.G. Hall, L. Essen, J.V.L. Parry. Frequency of cesium in terms of ephemeris time. Physical Review Letters. 1958, 1: 105–107. Bibcode:1958PhRvL...1..105M. doi:10.1103/PhysRevLett.1.105.

esa.int (Global: 1,073^rd place; Chinese: 1,006^th place)

Galileo begins serving the globe. European Space Agency. [2016-12-15]. （原始内容存档于2019-09-13）.
Galileo's clocks. European Space Agency. [2017-01-16]. （原始内容存档于2019-08-29）.

europa.eu (Global: 62^nd place; Chinese: 150^th place)

ec.europa.eu

Galileo's contribution to the MEOSAR system. European Commission. [2015-12-30]. （原始内容存档于2016-07-09）.

gsa.europa.eu

GALILEO GOES LIVE. European GNSS Agency. 2016-12-15 [2017-02-01]. （原始内容存档于2021-01-15）.

galleon.eu.com (Global: low place; Chinese: low place)

atomic-clock.galleon.eu.com

GPS time accurate to 100 nanoseconds. Galleon. [2012-10-12]. （原始内容存档于2012-05-14）.

gov.cn (Global: 1,182^nd place; Chinese: 58^th place)

我国铯原子喷泉钟2000万年不差一秒. 中央政府门户网站. 2014-08-22 [2020-11-28]. （原始内容存档于2021-01-07）.

gps.gov (Global: low place; Chinese: low place)

Global Positioning System. Gps.gov. [2010-06-26]. （原始内容存档于2010-07-30）. |dead-url=和|url-status=只需其一 (帮助)

gsc-europa.eu (Global: low place; Chinese: low place)

European GNSS (Galileo) Open Service Signal-In-Space Operational Status Definition, Issue 1.0, September 2015 (PDF). [2020-10-25]. （原始内容 (PDF)存档于2017-01-09）.
GALILEO INITIAL SERVICES – OPEN SERVICE – QUARTERLY PERFORMANCE REPORT OCT-NOV-DEC 2017 (PDF). European GNSS Service Centre. 2018-03-28 [2017-03-28]. （原始内容存档 (PDF)于2019-08-26）.
Galileo Open Service and Search and Rescue - Quarterly Performance Reports, containing measured performance statistics. [2020-10-25]. （原始内容存档于2019-08-26）.

insidegnss.com (Global: low place; Chinese: low place)

ESA Adds System Time Offset to Galileo Navigation Message. insidegnss.com. [2020-10-25]. （原始内容存档于2018-03-28）.

livemint.com (Global: 749^th place; Chinese: 2,390^th place)

PTI, K. J. M. Varma. China's BeiDou navigation satellite, rival to US GPS, starts global services. livemint.com. 2018-12-27 [2018-12-27]. （原始内容存档于2018-12-27）（英语）.

ltn.com.tw (Global: 342^nd place; Chinese: 10^th place)

news.ltn.com.tw

1秒有多長光晶格鐘更準. 自由時報. 2013-07-11 [2020-12-08]. （原始内容存档于2021-01-25）.

nature.com (Global: 207^th place; Chinese: 205^th place)

L. ESSEN, J. V. L. PARRY. An Atomic Standard of Frequency and Time Interval: A Cæsium Resonator. Nature. 1955/08, 176 (4476): 280–282 [2018-04-02]. ISSN 1476-4687. doi:10.1038/176280a0 （英语）. 请检查|date=中的日期值 (帮助)

navipedia.net (Global: low place; Chinese: low place)

Time References in GNSS. navipedia.net. [2020-10-25]. （原始内容存档于2018-06-02）.

nim.ac.cn (Global: low place; Chinese: low place)

我院成功研制出铯原子喷泉基准钟（NIM6）. 2019-12-25 [2021-01-03]. （原始内容存档于2021-01-07）.

nist.gov (Global: 708^th place; Chinese: 719^th place)

tf.nist.gov

M.A. Lombardi, T.P. Heavner, S.R. Jefferts. NIST Primary Frequency Standards and the Realization of the SI Second (PDF). Journal of Measurement Science. 2007, 2 (4): 74 [2014-04-26]. （原始内容存档 (PDF)于2021-02-12）.
William L. Laurence, "'Cosmic pendulum' for clock planned," New York Times, 21 January 1945, page 34. Reprinted on page 77 of: Lombardi, Michael A.; Heavner, Thomas P.; and Jefferts, Steven R. (December 2007) "NIST primary frequency standards and the realization of the SI second," （页面存档备份，存于互联网档案馆） NCSLI Measure, vol. 2, no. 4, pages 74-89.
D.B. Sullivan. Time and frequency measurement at NIST: The first 100 years (PDF). 2001 IEEE International Frequency Control Symposium. NIST: 4–17. 2001 [2014-04-26]. （原始内容 (PDF)存档于2011-09-27）.
Chip-Scale Atomic Devices at NIST. NIST. 2007 [2008-01-17]. （原始内容存档于2008-01-07）. Available on-line at: NIST.gov （页面存档备份，存于互联网档案馆）
Michael A. Lombardi, "How Accurate is a Radio Controlled Clock?" （页面存档备份，存于互联网档案馆）, National Institute of Standards and Technology, 2010.

nist.gov

NIST-F1 Cesium Fountain Clock. NIST. 1999-12-29 [2020-12-01]. （原始内容存档于2021-01-17）.
NIST Launches a New U.S. Time Standard: NIST-F2 Atomic Clock. 2014-04-03 [2021-01-03]. （原始内容存档于2020-12-24）.

pdana.com (Global: low place; Chinese: low place)

The Role of GPS in Precise Time and Frequency Dissemination (PDF). GPSworld. July–August 1990 [2014-04-27]. （原始内容存档 (PDF)于2012-12-15）.

people.com.cn (Global: 295^th place; Chinese: 17^th place)

scitech.people.com.cn

深空原子鐘：讓航天器自主導航. 科技日報. 2019-06-26 [2020-06-04]. （原始内容存档于2020-06-04）.

qps.nl (Global: low place; Chinese: low place)

confluence.qps.nl

UTC to GPS Time Correction. qps.nl. [2020-10-25]. （原始内容存档于2017-03-21）.

reuters.com (Global: 38^th place; Chinese: 61^st place)

uk.reuters.com

China puts final satellite for Beidou network into orbit – state media. Reuters. 2020-06-23 [2020-06-23]. （原始内容存档于2020-10-28）（英语）.

spacecorp.ru (Global: low place; Chinese: low place)

GLONASS Interface Control Document, Navigation radiosignal In bands L1, L2 (ICD L1, L2 GLONASS), Russian Institute of Space Device Engineering, Edition 5.1, 2008 (PDF). [2020-10-25]. （原始内容存档 (PDF)于2016-04-14）.

spectratime.com (Global: low place; Chinese: low place)

Passive Hydrogen Maser (PHM). spectratime.com. [2020-10-25]. （原始内容存档于2019-03-06）.
Rb Atomic Frequency Standard (RAFS). spectratime.com. [2020-10-25]. （原始内容存档于2018-11-06）.

symmetricom.com (Global: low place; Chinese: low place)

SA.45s CSAC Chip Scale Atomic Clock (PDF). 2011 [2013-06-12]. （原始内容存档 (PDF)于2013-05-25）.

unoosa.org (Global: low place; Chinese: 7,797^th place)

1 The Definition and Implementation of Galileo System Time (GST). ICG-4 WG-D on GNSS time scales. Jérôme Delporte. CNES – French Space Agency. (PDF). [2020-10-25]. （原始内容存档 (PDF)于2016-11-06）.
GNSS Timescale Description (PDF). [2020-10-25]. （原始内容存档 (PDF)于2020-10-28）.
Definition and Realization of the System Time of COMPASS/BeiDou Navigation Satellite System, Chunhao Han, Beijing Global Information Center,(BGIC), Beijing, China (PDF). [2020-10-25]. （原始内容存档 (PDF)于2020-10-29）.

uscg.gov (Global: low place; Chinese: low place)

navcen.uscg.gov

NAVSTAR GPS User Equipment Introduction (PDF). [2020-10-25]. （原始内容存档 (PDF)于2013-10-21）. Section 1.2.2
存档副本. [2020-10-25]. （原始内容存档于2017-05-21）.

web.archive.org (Global: 1^st place; Chinese: 1^st place)

Sir William Thomson (Lord Kelvin) and Peter Guthrie Tait, Treatise on Natural Philosophy, 2nd ed. (Cambridge, England: Cambridge University Press, 1879), vol. 1, part 1, page 227 （页面存档备份，存于互联网档案馆）.
M.A. Lombardi, T.P. Heavner, S.R. Jefferts. NIST Primary Frequency Standards and the Realization of the SI Second (PDF). Journal of Measurement Science. 2007, 2 (4): 74 [2014-04-26]. （原始内容存档 (PDF)于2021-02-12）.
William L. Laurence, "'Cosmic pendulum' for clock planned," New York Times, 21 January 1945, page 34. Reprinted on page 77 of: Lombardi, Michael A.; Heavner, Thomas P.; and Jefferts, Steven R. (December 2007) "NIST primary frequency standards and the realization of the SI second," （页面存档备份，存于互联网档案馆） NCSLI Measure, vol. 2, no. 4, pages 74-89.
D.B. Sullivan. Time and frequency measurement at NIST: The first 100 years (PDF). 2001 IEEE International Frequency Control Symposium. NIST: 4–17. 2001 [2014-04-26]. （原始内容 (PDF)存档于2011-09-27）.
相对论已经被证实是正确的吗？ - 知乎. www.zhihu.com. [2018-04-27]. （原始内容存档于2021-06-02）（中文）.
网站防火墙. www.chinadmd.com. [2018-04-27]. （原始内容存档于2018-06-12）.
NIST-F1 Cesium Fountain Clock. NIST. 1999-12-29 [2020-12-01]. （原始内容存档于2021-01-17）.
Chip-Scale Atomic Devices at NIST. NIST. 2007 [2008-01-17]. （原始内容存档于2008-01-07）. Available on-line at: NIST.gov （页面存档备份，存于互联网档案馆）
SA.45s CSAC Chip Scale Atomic Clock (PDF). 2011 [2013-06-12]. （原始内容存档 (PDF)于2013-05-25）.
Evaluation of the frequency of the H-maser 1401708 by the primary frequency standard NPL-CsF2 (PDF). National Physical Laboratory. 2011-09-01 [2022-07-10]. （原始内容存档 (PDF)于2022-01-21）.
英国原子钟“世界上最准确”. BBC 中文網. 2011-08-26 [2020-06-04]. （原始内容存档于2021-01-07）.
1秒有多長光晶格鐘更準. 自由時報. 2013-07-11 [2020-12-08]. （原始内容存档于2021-01-25）.
我国铯原子喷泉钟2000万年不差一秒. 中央政府门户网站. 2014-08-22 [2020-11-28]. （原始内容存档于2021-01-07）.
NIST Launches a New U.S. Time Standard: NIST-F2 Atomic Clock. 2014-04-03 [2021-01-03]. （原始内容存档于2020-12-24）.
NIM6铯原子喷泉钟精准度有望达到1亿年不差一秒. 新華網. 2019-05-20 [2020-11-30]. （原始内容存档于2020-08-06）.
深空原子鐘：讓航天器自主導航. 科技日報. 2019-06-26 [2020-06-04]. （原始内容存档于2020-06-04）.
争相制造世界第一个核时钟或将颠覆原子钟黄金标准. 分析測試百科網. 2019-09-12 [2020-12-09]. （原始内容存档于2021-06-02）.
我院成功研制出铯原子喷泉基准钟（NIM6）. 2019-12-25 [2021-01-03]. （原始内容存档于2021-01-07）.
Global Positioning System. Gps.gov. [2010-06-26]. （原始内容存档于2010-07-30）. |dead-url=和|url-status=只需其一 (帮助)
David W. Allan. The Science of Timekeeping (PDF). Hewlett Packard. 1997 [2020-10-25]. （原始内容存档 (PDF)于2012-10-25）.
The Role of GPS in Precise Time and Frequency Dissemination (PDF). GPSworld. July–August 1990 [2014-04-27]. （原始内容存档 (PDF)于2012-12-15）.
GPS time accurate to 100 nanoseconds. Galleon. [2012-10-12]. （原始内容存档于2012-05-14）.
UTC to GPS Time Correction. qps.nl. [2020-10-25]. （原始内容存档于2017-03-21）.
NAVSTAR GPS User Equipment Introduction (PDF). [2020-10-25]. （原始内容存档 (PDF)于2013-10-21）. Section 1.2.2
存档副本. [2020-10-25]. （原始内容存档于2017-05-21）.
Notice Advisory to Navstar Users (NANU) 2012034. GPS Operations Center. 2012-05-30 [2012-07-02]. （原始内容存档于2013-04-08）. |dead-url=和|url-status=只需其一 (帮助)
Time References in GNSS. navipedia.net. [2020-10-25]. （原始内容存档于2018-06-02）.
GLONASS Interface Control Document, Navigation radiosignal In bands L1, L2 (ICD L1, L2 GLONASS), Russian Institute of Space Device Engineering, Edition 5.1, 2008 (PDF). [2020-10-25]. （原始内容存档 (PDF)于2016-04-14）.
Galileo begins serving the globe. European Space Agency. [2016-12-15]. （原始内容存档于2019-09-13）.
Galileo's contribution to the MEOSAR system. European Commission. [2015-12-30]. （原始内容存档于2016-07-09）.
European GNSS (Galileo) Open Service Signal-In-Space Operational Status Definition, Issue 1.0, September 2015 (PDF). [2020-10-25]. （原始内容 (PDF)存档于2017-01-09）.
Galileo's clocks. European Space Agency. [2017-01-16]. （原始内容存档于2019-08-29）.
1 The Definition and Implementation of Galileo System Time (GST). ICG-4 WG-D on GNSS time scales. Jérôme Delporte. CNES – French Space Agency. (PDF). [2020-10-25]. （原始内容存档 (PDF)于2016-11-06）.
GALILEO GOES LIVE. European GNSS Agency. 2016-12-15 [2017-02-01]. （原始内容存档于2021-01-15）.
GALILEO INITIAL SERVICES – OPEN SERVICE – QUARTERLY PERFORMANCE REPORT OCT-NOV-DEC 2017 (PDF). European GNSS Service Centre. 2018-03-28 [2017-03-28]. （原始内容存档 (PDF)于2019-08-26）.
Galileo Open Service and Search and Rescue - Quarterly Performance Reports, containing measured performance statistics. [2020-10-25]. （原始内容存档于2019-08-26）.
Passive Hydrogen Maser (PHM). spectratime.com. [2020-10-25]. （原始内容存档于2019-03-06）.
Rb Atomic Frequency Standard (RAFS). spectratime.com. [2020-10-25]. （原始内容存档于2018-11-06）.
GNSS Timescale Description (PDF). [2020-10-25]. （原始内容存档 (PDF)于2020-10-28）.
ESA Adds System Time Offset to Galileo Navigation Message. insidegnss.com. [2020-10-25]. （原始内容存档于2018-03-28）.
Definition and Realization of the System Time of COMPASS/BeiDou Navigation Satellite System, Chunhao Han, Beijing Global Information Center,(BGIC), Beijing, China (PDF). [2020-10-25]. （原始内容存档 (PDF)于2020-10-29）.
China GPS rival Beidou starts offering navigation data. BBC. 2011-12-27 [2020-10-25]. （原始内容存档于2012-02-03）.
China's Beidou GPS-substitute opens to public in Asia. BBC. 2012-12-27 [2012-12-27]. （原始内容存档于2012-12-27）.
PTI, K. J. M. Varma. China's BeiDou navigation satellite, rival to US GPS, starts global services. livemint.com. 2018-12-27 [2018-12-27]. （原始内容存档于2018-12-27）（英语）.
China puts final satellite for Beidou network into orbit – state media. Reuters. 2020-06-23 [2020-06-23]. （原始内容存档于2020-10-28）（英语）.
Michael A. Lombardi, "How Accurate is a Radio Controlled Clock?" （页面存档备份，存于互联网档案馆）, National Institute of Standards and Technology, 2010.

worldcat.org (Global: 4^th place; Chinese: 4^th place)

L. ESSEN, J. V. L. PARRY. An Atomic Standard of Frequency and Time Interval: A Cæsium Resonator. Nature. 1955/08, 176 (4476): 280–282 [2018-04-02]. ISSN 1476-4687. doi:10.1038/176280a0 （英语）. 请检查|date=中的日期值 (帮助)

xinhuanet.com (Global: 271^st place; Chinese: 19^th place)

NIM6铯原子喷泉钟精准度有望达到1亿年不差一秒. 新華網. 2019-05-20 [2020-11-30]. （原始内容存档于2020-08-06）.

zhihu.com (Global: 8,156^th place; Chinese: 676^th place)

相对论已经被证实是正确的吗？ - 知乎. www.zhihu.com. [2018-04-27]. （原始内容存档于2021-06-02）（中文）.

原子鐘 (Chinese Wikipedia)

adsabs.harvard.edu (Global: 14th place; Chinese: 27th place)

ui.adsabs.harvard.edu

af.mil (Global: 414th place; Chinese: 730th place)

gps.afspc.af.mil

allanstime.com (Global: low place; Chinese: low place)

antpedia.com (Global: low place; Chinese: low place)

m.antpedia.com

archive.org (Global: 6th place; Chinese: 2nd place)

bbc.co.uk (Global: 11th place; Chinese: 28th place)

bbc.com (Global: 26th place; Chinese: 38th place)

beidou.gov.cn (Global: low place; Chinese: 7,318th place)

interact.beidou.gov.cn

bipm.org (Global: 1,781st place; Chinese: 1,789th place)

webtai.bipm.org

books.google.com (Global: 3rd place; Chinese: 6th place)

chinadmd.com (Global: low place; Chinese: low place)

doi.org (Global: 2nd place; Chinese: 5th place)

esa.int (Global: 1,073rd place; Chinese: 1,006th place)

europa.eu (Global: 62nd place; Chinese: 150th place)

ec.europa.eu

gsa.europa.eu

galleon.eu.com (Global: low place; Chinese: low place)

atomic-clock.galleon.eu.com

gov.cn (Global: 1,182nd place; Chinese: 58th place)

gps.gov (Global: low place; Chinese: low place)

gsc-europa.eu (Global: low place; Chinese: low place)

insidegnss.com (Global: low place; Chinese: low place)

livemint.com (Global: 749th place; Chinese: 2,390th place)

ltn.com.tw (Global: 342nd place; Chinese: 10th place)

news.ltn.com.tw

nature.com (Global: 207th place; Chinese: 205th place)

navipedia.net (Global: low place; Chinese: low place)

nim.ac.cn (Global: low place; Chinese: low place)

nist.gov (Global: 708th place; Chinese: 719th place)

tf.nist.gov

nist.gov

pdana.com (Global: low place; Chinese: low place)

people.com.cn (Global: 295th place; Chinese: 17th place)

scitech.people.com.cn

qps.nl (Global: low place; Chinese: low place)

confluence.qps.nl

reuters.com (Global: 38th place; Chinese: 61st place)

uk.reuters.com

spacecorp.ru (Global: low place; Chinese: low place)

spectratime.com (Global: low place; Chinese: low place)

symmetricom.com (Global: low place; Chinese: low place)

unoosa.org (Global: low place; Chinese: 7,797th place)

uscg.gov (Global: low place; Chinese: low place)

navcen.uscg.gov

web.archive.org (Global: 1st place; Chinese: 1st place)

worldcat.org (Global: 4th place; Chinese: 4th place)

xinhuanet.com (Global: 271st place; Chinese: 19th place)

zhihu.com (Global: 8,156th place; Chinese: 676th place)

adsabs.harvard.edu (Global: 14^th place; Chinese: 27^th place)

af.mil (Global: 414^th place; Chinese: 730^th place)

archive.org (Global: 6^th place; Chinese: 2^nd place)

bbc.co.uk (Global: 11^th place; Chinese: 28^th place)

bbc.com (Global: 26^th place; Chinese: 38^th place)

beidou.gov.cn (Global: low place; Chinese: 7,318^th place)

bipm.org (Global: 1,781^st place; Chinese: 1,789^th place)

books.google.com (Global: 3^rd place; Chinese: 6^th place)

doi.org (Global: 2^nd place; Chinese: 5^th place)

esa.int (Global: 1,073^rd place; Chinese: 1,006^th place)

europa.eu (Global: 62^nd place; Chinese: 150^th place)

gov.cn (Global: 1,182^nd place; Chinese: 58^th place)

livemint.com (Global: 749^th place; Chinese: 2,390^th place)

ltn.com.tw (Global: 342^nd place; Chinese: 10^th place)

nature.com (Global: 207^th place; Chinese: 205^th place)

nist.gov (Global: 708^th place; Chinese: 719^th place)

people.com.cn (Global: 295^th place; Chinese: 17^th place)

reuters.com (Global: 38^th place; Chinese: 61^st place)

unoosa.org (Global: low place; Chinese: 7,797^th place)

web.archive.org (Global: 1^st place; Chinese: 1^st place)

worldcat.org (Global: 4^th place; Chinese: 4^th place)

xinhuanet.com (Global: 271^st place; Chinese: 19^th place)

zhihu.com (Global: 8,156^th place; Chinese: 676^th place)