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1·Diamond coring bits are utilized for core drilling.

在取芯钻井井段，选用金刚石取芯钻头。

2·This paper discusses the procedures of DTH hammer and core drilling with casing.

本文主要论述了空气潜孔锤跟管取心钻进规程。

3·This paper describes and summarizes the core drilling process and the technical measures.

文章介绍并总结了该项目岩芯钻探钻孔施工工艺与技术措施。

4·This machine can be used drilling, core drilling, reaming, boring, tapping, spot-facing and chamfering etc.

可以进行钻孔、扩孔、铰孔、镗孔、攻丝、锪平面，倒角等工作。

5·To use different core drilling method in different geological environments can ensure the smooth progress of geological exploration work.

在不同的地质环境中，使用不同的岩心钻进方式，可以保证地质勘探工作的顺利进行。

6·The core drilling method and the obtained achievement are introduced with respect to the bit and core barrel used in different formation.

根据不同地层所采用的钻头和取心器，介绍了不同地层的钻进取心方法和取得的成果。

7·The evidence comes from everything from core drilling to medieval financial records newly uncovered from state archives in Istanbul and Italy.

所展示的证据来源广泛，从岩心钻探到在伊斯坦布尔和意大利的国家档案馆新发现的中世纪财政记录。

8·This project will reveal clues to how the mountains were formed and provide scientists with the best location for future ice core drilling campaigns.

这个项目将揭示甘毕采夫冰下山脉的形成线索，为科学家们将来进行取芯钻探活动提供最佳位置。

9·In view of such a problem, the lithological electrical parameters in Archie formula were calibrated by use of the analysis data of sealing core drilling.

文章针对这一问题，利用密闭取心分析资料对阿尔奇公式中的岩石电学参数进行了刻度。

10·This method properly determined the sample quantity to make core drilling amendment with the confidence degree and precision estimate theory of error theory.

在该方法中，利用误差理论中的置信度和估计精度理论，合理确定钻芯修正所需要的芯样数量。