The development and successful application of mobile roof support make ready a new type supporting equipment for mechanized mining of short-wall faces.
履带行走式液压支架的研制与成功应用，为短壁工作面机械化开采提供了一种新的支护设备。
The development and successful application of mobile roof support make ready a new type supporting equipment for mechanized mining of short-wall faces.
履带行走式液压支架的研制与成功应用，为短壁工作面机械化开采提供了一种新的支护设备。
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