... walking potato digger ==> 手扶式马铃薯挖掘机 walking prop ==> 行走式支架 walking props ==> 自移式支架 ...
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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.
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