隧道掘进机。盾构机止推钻孔机螺旋钻探机衬里安装设备。安全要求。

Tunnelling machines - shield machines, thrust boring machines, auger boring machines, lining erection equipment - safety requirements.

操作空气运作轨道，旋转，向下钻孔机或其他钻探机钻爆破洞或直接钻爆破洞。

May operate air-track, rotary, down-the-hole or other drilling machines to drill blast holes or may direct drilling of blast holes.

此外，由于熟练工人和钻探机等专业设备都面临短缺，新矿开发时间超过预期，也推高了价格。

Prices have also been driven higher by new mines taking longer than expected to develop, because both skilled workers and specialist equipment such as drills have been in short supply.

也许是令人失望的，科学家不是通过采取一个令人兴奋的地心钻探机对地球外壳以下的探险发现的，但是用(比较起来)单调的实验室的工作。

Disappointingly perhaps, scientists have discovered this not by carrying out an exciting mole-cruiser expedition beneath the planetary crust, but by (comparatively) humdrum lab work.