“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。
随便看	group variety group velocity group velocity control method, GVC method group velocity dispersion group velocity mismatch Group VIII B element Group VIII element group von Neumann algebra groupware group with a (B,N)-pair group with a decreasing filtration group with a domain of operators group with a finiteness condition group with an increasing filtration group with a pairing group with a ring of operators group with a semigroup of operators group with center group with multiple operators group with operators group without center group without radical group without torsion group with respect to addition group with respect to a form

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