In course of sinking the well - shaft they came upon a deposit of a very rare mineral.

他们在凿井的过程中,发现了一处稀有矿物矿床.

《简明英汉词典》

They were boring for water.

他们在凿井取水.

辞典例句

This paper analyses the piston effect problem in dellling shaft sinking method and its detriments.

本文分析了钻井法凿井中所出现的钻井活塞效应问题及带来的危害.

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The security of freezing wall is the key problem of freezing shaft sinking in deep alluvium.

冻结壁的安全性是深厚冲积层中冻结凿井的关键问题.

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