本文主要论述了空气潜孔锤跟管取心钻进规程。

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

youdao

基岩钻探方法以采取普通硬质合金清水回转垂直取心钻进，覆盖层采用干钻。

For bedrock drilling ordinary hard alloy driller can be adopted for vertical core-drilling with the addition of clear water during rotation. for overburden dry drilling process can be adopted.

youdao

根据科学钻探对岩心的特殊要求，认为金刚石取心钻头是科学深钻取心钻进较理想的选择。

Diamond core bit is preferred for coring operation in terms of the special requirements of scientific drilling.

youdao