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

那些男人在驾驶隧道掘进机时，一次大面积的岩崩困住了他们。

《柯林斯英汉双解大词典》

After 15 years of construction work, the 9.5-meter (31-foot) wide drilling machine will bore through the remaining 1.5 meters of rock to join two ends of the tunnel some 2,000 meters under a mountain.

经过15年的施工，9.5米宽的钻孔机将会钻穿最后剩下的1.5米的岩层，联通了位于山体下2000米的隧道两端。

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Miners watch as the drill machine 'Sissi' breaks through the rock on the final section of the Gotthard Tunnel.

打通山体的工人正在查看钻孔机器“茜茜公主”打穿圣哥达隧道最后一部分的岩石。

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While there are many theories of how this was accomplished, from the influence of Rock and Roll, to the fax machine, I tend to give the most credence to the economic front.

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