A massive rock fall trapped the men as they operated a tunnelling machine.

这些工人在操作隧道挖掘机时被大量的落石困住了。

柯林斯例句

The workers were tunnelling through solid rock.

工人们正在坚石中挖掘一条通道.

辞典例句

The prisoners had escaped by tunnelling.

犯人挖地道逃跑了.

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There are mainly two kinds of roadheader: Tunnelling Boom Machine ( TBM ) and partial - size tunneling machine.

掘进机按照对于巷道断面的作用方式可划分为两种: 全断面 掘进 机和部分 断面 掘进机.

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This article presents VPN and its main implementing technology, that is the Tunnelling Technology.

本文阐述了VPN及其实现的主要技术――隧道.

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Grave protrusion coal seam tunnelling hydraulic cutting protrusion - dispelling measures is a new technology in the world.

严重突出煤层掘进水力掏槽防突措施在国际上是一种防突新技术.

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Up till about 1960 the only alternative was bridging over or tunnelling under the waterway.

直到1960年左右所能选择的方案只是水上架桥法或水下开凿隧道法.

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