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钻井

钻井是为了抽取像地下水天然气石油之类的天然资源而在地面上钻洞的过程。为了勘探地下自然资源的钻探称作地上凿洞钻探或者钻探。

最早的水井可能是用手在地下水位靠近地面的地方浅浅的挖坑。现代的钻井技术是利用长排种机轴。排种机轴钻出的洞比用人工挖的洞更窄而且更深。

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钻井
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