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CTJ-4Z四臂重型凿岩台车是一种轮胎自行式掘进台车(见封面照片),系采用风动凿岩,液压电气控制。台车的掘进作业断面见图1。
CTJ-4Z four-arm heavy rock drilling rig is a self-propelled tire driving vehicle (see the cover photo), which is made of pneumatic rock drilling and hydraulic electrical control. Trolley tunneling section shown in Figure 1.