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.
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。
The driller adopts truck power and technical method of foam drilling, which solves the problems of deficiency of water source and electrical source in field drilling work.
本文介绍在野外钻探作业中车载钻机的设计思路，该钻机采用汽车动力和泡沫钻进的工艺方法，解决了野外钻探作业中电源与水源的缺乏问题。
The driller adopts truck power and technical method of foam drilling, which solves the problems of deficiency of water source and electrical source in field drilling work.
依据泡沫的优点 ，提出了在干旱缺水地区采用深水井泡沫钻进技术的钻探新方法。
The driller adopts truck power and technical method of foam drilling, which solves the problems of deficiency of water source and electrical source in field drilling work.
依据泡沫的优点 ，提出了在干旱缺水地区采用深水井泡沫钻进技术的钻探新方法。
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