作为井下无轨采矿方法主要设备的轮式无轨车辆，已在世界上许多国家的地下矿山广为应用。
As a major trackless equipment for underground mining, rubber-tired vehicle has been widely used in underground mines in many countries over the world.
同时指出了在开发研制煤矿井下无轨辅助运输车辆制动器时应注意的几个问题。
At the same time, it points out several problems on developing of brakes for the coal mine underground trackless auxiliary transportation vehicles that should pay attention to.
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