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手钻-常规

3 bytes added, 09:34, 20 October 2015

→‎鸣谢

===鸣谢===

* 本页的材料源于即将在[http://www.practicafoundation.nl/ Practica Foundation]网站发表的初步研究以及网站以及[http://www.rural-water-supply.net/ Rural Water Supply Network]中发表的初步研究, 尤其是其中的[http://www.rural-water-supply.net/en/implementation/manual-drilling 人工钻井部分].

* [http://www.lboro.ac.uk/well/resources/technical-briefs/43-simple-drilling-methods.pdf 43.简易钻井方法.] WEDC.

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Weichen Chen

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