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钻井或挖掘井

5 bytes removed, 01:24, 18 May 2016
→‎人工钻井链接
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* 视频: [http://www.thewaterchannel.tv/index.php?option=com_hwdvideoshare&task=viewvideo&Itemid=4&video_id=611 media-gallery/641-manual-drilling-and-pump-installation-madagascar 人工钻井和水泵安装，马达加斯加] by The Water Channel.
* [http://www.rural-water-supply.net/en/resources/details/402 人工钻井技术], Richard Carter, Cranfield University, 2005.
* [http://www.hydrology.nl/images/docs/ihp/nl/cop15/2_Richard_Taylor.pdf • 非洲地下水和气候变化：坎帕拉宣言] Richard Taylor, University College London (UK), IAH Commission of Groundwater & Climate Change.
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