活塞环 (Chinese Wikipedia)

Analysis of information sources in references of the Wikipedia article "活塞环" in Chinese language version.

refsWebsite

Global rank Chinese rank

2web.archive.org

1^st place

1^st place

2federalmogul.com

low place

low place

federalmogul.com

korihandbook.federalmogul.com

General Principles. www.federalmogul.com. [1 December 2019]. （原始内容存档于19 November 2019）.

federalmogul.com

Piston Ring Functions and Operation. www.federalmogul.com. [1 July 2009]. （原始内容存档于10 July 2011）.

web.archive.org

General Principles. www.federalmogul.com. [1 December 2019]. （原始内容存档于19 November 2019）.
Piston Ring Functions and Operation. www.federalmogul.com. [1 July 2009]. （原始内容存档于10 July 2011）.