2) exploratory pits
坑探
1.
For making up examination holes, exploratory pits are elementarily used as a supplemental way examining the effects of earth-fill dam grouting testing.
坑探作为检查土坝灌浆试验效果的一种辅助方法,目的在于弥补检查孔的不足,通过工程实践,对其应用的优越性进行探讨。
3) probing
[英]['prəʊbɪŋ] [美]['probɪŋ]
坑探;探测
4) test pit
试验坑;探坑
5) drilling in pit
坑内钻探
1.
By using drilling in pit,ore reserve classification is increased,risks of underground mining engineering are reduced and avoided.
主要阐述了矿区通过实施坑内钻探,提高储量级别,降低和避免井下采矿工程风险,节约了成本,增加了效益。
6) exploration tunnel
探矿坑道
1.
Combining with a tunnel construction case,an ordinary method of ascertaining Optimum hole depths in small exploration tunnel drivage is discussed.
结合一坑道施工实例,论述了小型探矿坑道确定最优炮眼深度的一般方法。
补充资料：坑探
1.开挖坑道探明矿藏的情况。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条