Analysis of information sources in references of the Wikipedia article "奥卡万戈三角洲" in Chinese language version.
The total drop in altitude between Mohembo and Maun, a distance of440 km, is only 62 metres, giving a gradient of approximately 1:7,000 only
The total drop in altitude between Mohembo and Maun, a distance of440 km, is only 62 metres, giving a gradient of approximately 1:7,000 only
|issn=
值 (帮助) (中文(臺灣)).