| 释义 |
exploration boring
基本例句
钻探
Exploration programmes are based on drilling for the stratiform deposits along projections of established trends.勘探计划依靠钻探，钻探层状矿床沿着已知走向的延伸部分进行。
In rotary boring, rock penetration is achieved by the rotation of the hollow cutting tool.旋转钻探利用中空的切削工具通过旋转钻透岩石。 |