” In order to “keep out the wind Dust wall” of the structural design more reasonable and better dust suppression, commissioned by the interpretation of “wall of wind and dust,” dust technology research leader of the Nanjing University of Powder Science and Engineering Research Institute, simulated meteorological factors usha Mountain Power has done a wind tunnel experiments to determine the region against the wind usha mountain plant dust suppression plate hole rate of its “wind Dust wall” height.
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I can see the brown wall of dust coming toward us with the wind.
风卷起褐色的墙壁似的滚滚黄沙，向这里袭来。
It's easy and useful to control dust and gas with wind-cloth curtains in the bringing back long wall face.
走向长壁后退式开采工作面用风帘控制粉尘和瓦斯简单易行，能够解决生产中的实际问题。
In all that time, Ruha learned only how to make a wall from wind and dust.
那么长的时间了露哈只学会了如何用风和沙造出一堵障蔽。
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