core drilling

基本解释

Diamond coring bits are utilized for core drilling.
在取芯钻井井段，选用金刚石取芯钻头。
One of the most important geophysical techniques is core drilling, which is carried out with a hollow cylinder through subsurface layers to obtain samples of rocks.
岩心钻探是最重要的地球物理勘探技术之一。进行钻探时，用一根空心管穿过地表下层获取岩石样品。
Core drilling is also commonly used to create holes for routing cables or placing anchoring bolts, installing load carrying devices or dowel bars, or for concrete sample analysis.
钻探也是常用的路由电缆制造或配售锚孔螺栓承载装置安装销子或酒吧，或混凝土样本分析。

As part of this lengthy process, petitioners were required to submit numerous items to the department, including detailed survey work and core drilling samples.
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Instead, there are late nights with Icahn building convictions by drilling down on two or three core issues, and lots of phone calls.
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Secondly, layered on top of our core thesis, we see significant upside from a potential industry shift back toward natural gas drilling.
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