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 surprise is that these separated forms can be transformed by the fourth and largest element in the group, the 50 ton mobile roof and wall enclosure which traverses the site.
令人惊讶的是，这些分离形式可以转化的第四次和最大的组成部分，集团，五十吨移动屋顶和墙壁围封横越该网站。
Austrian company Marchi Mobile is behind the 40ft long palace on wheels, called the eleMMent palazzo, which comes complete with a pop-up roof terrace measuring 215 sq ft, underfloor heating and a bar.
由奥地利房车公司马奇移动制造的这辆豪华房车，名为“元素”，车身长40英尺，配有215平方英尺的伸展式屋顶露台，地暖设施以及一间酒吧。
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