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冲击钻井

8 bytes added, 11:21, 3 November 2015
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===鸣谢===
* 本页基本素材是从即将发表在网上的一项初步研究中取得的:[http://www.practicafoundation.nl/ Practica Foundation(实践基金会)], 以及 也源于[http://www.rural-water-supply.net/ Rural Water Supply Network(农村给水组织)]网站, 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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