The drill ship for Marine geological prospecting has successfully drilled a well for deep water oil prospecting in the Yellow Sea.
这艘海洋地质钻探船已成功地在黄海打了一口深水石油勘探井。
Based on the prospecting practices of many years, the paper has summarized 8 general lithologic features of core under normal stratigraphic sequence before drilling to the coal-beds in drill hole.
根据多年的勘查实践，总结提出了八条正常地层层序下钻孔见煤前的一般岩心岩性特征，对指导见煤预告等大有裨益。
For small rotary rock drill bits and rotary prospecting bits to cut soft, medium-hard rock.
用于中小规格冲击钻及旋转勘探钻具，凿进软岩层、中硬岩层。
By the project performance, it has introduced some methods such as geophysical prospecting, dynamic and static strain observation to study the relation between drill-hole pumping and land deformation.
论文通过工程实例，介绍了采用物探、动静态应变观测等方法综合研究钻孔抽水与地面变形之关系。
The equipment structure and function of the drill are better than prospecting products in the world, however, the price is quarter of the imported drill.
钻机上的设备结构和功能比国际范围内同类产品更优秀，价格却是进口钻机的四分之一。
The equipment structure and function of the drill are better than prospecting products in the world, however, the price is quarter of the imported drill.
钻机上的设备结构和功能比国际范围内同类产品更优秀，价格却是进口钻机的四分之一。
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