就隧道施工机械的超前磨损原因进行了分析，并寻找了补救途径。
The reasons of advanced wear for these machineries are analyzed and remedial ways are sought out.
随着隧道施工机械化程度的提高，在特长小断面隧道工程中采用钻爆法掘进施工，其机械配套是制约掘进速度的重要条件。
With the development of mechanization and drill and blast in extra - long tunnels with a small section, the matching machinery is very important to driving speed.
盾构掘进机是一种广泛应用于地铁、铁路、公路、市政、水电等隧道工程施工的大型机械设备。
Shield machine is a large mechanical device that is widely used in the construction of tunnel engineering such as subway, railway, roadway, city infrastructure, and water and electricity utility.
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