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The machining way of the series of supporting hole is to bore hole by coordinate.
支承孔系的加工采用的是坐标法镗孔。
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The construction methods and techniques of freezing bore hole are presented in this paper.
文中介绍了其冻结孔的施工技术及方法。
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The location of a point feature, such as a bore hole , can be described by a single x, y coordinate.
线特征，例如公路和河流，可以被存储于一系列的点坐标。
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This would assist the drilling of a bore hole into the mine, to take a gas reading from near where the miners are.
这将有利于向煤矿下钻孔，来读出矿工所在位置附近的气体指数。
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To low production and low pressure wells, low pressure makes liquid depth in bore hole to be low before it closed.
低产低压油井关井后，井筒内出现段塞流，测试资料表现出很长的早期段。
1. 钻孔是指用钻头在实体材料上加工出孔的操作。这里讲述了勘探工作里的钻孔工作，以及钻孔需要的辅助工具以及部分应急措施方法。 在地质勘查工作中，利用钻探设备向地下钻成的直径较小深度较大的柱状圆孔，又称钻井。钻探石油和天然气以及地下水的钻孔直径较大些。钻孔直径和深度大小，取决于地质矿产埋藏深度和钻孔的用途。