“geological core drilling”的概念、定义、翻译、参考文献-科学参考

单词	geological core drilling
释义	geological core drilling Encyclopedia 理学钻探工程释 geological core drilling地质岩心钻探使用专用钻探机械，利用圆筒状钻头、岩心管和钻杆等组合成钻具，在岩石中环状破碎岩石，在孔底中心部分保留一个柱状的岩心，再从孔内取出岩心用以研究地质和矿产情况的钻探。简称地质钻探。是钻探工程学科下最重要的分支学科，是固体矿产地质勘探中采用的主要技术方法。
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