组合钻探工艺是一种为了提高不同地层取样钻探施工综合效率的多用途钻探技术。
Combined drilling technology is a multi purpose drilling method which is developed to increase the comprehensive drilling efficiency in different formations.
中心取样钻探是一种全新的钻探方法，具有效率快、取样准确、岩样采取率高的特点。
The central sampling drilling is a new method which has the characteristics of efficient, accurate sampling and high percentage recovery of Core.
通过钻探取样对一个垃圾场底部土层的污染状况进行了现场调查。
Investigation of pollution situation of bottom layer of a landfill by boring sampling was carried out.
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