Changes

手钻-三脚架钻井机

110 bytes removed, 10:34, 19 October 2015
Acknowledgements
* 钻井操作的多重业务流程, [http://navybmr.com/study%20material/14080a/14080A_ch9.pdf field manual chapter 9, US Military], 其他建井和人工钻井技术.
===Acknowledgements鸣谢===* The basis for the material on this page was obtained from a desk study shortly to be published on the website of the 本页的材料源于即将在[http://www.practicafoundation.nl/ Practica Foundation], and from the 发表的初步研究以及[http://www.rural-water-supply.net/ Rural Water Supply Network], and specifically its 尤其是其中的[http://www.rural-water-supply.net/en/implementation/manual-drilling manual drilling manual drilling section人工钻井部分].
81
edits