Great Wall Scenic Area for the realization of non-polluting construction, construction personnel with mud Reversing Technology.
为实现长城风景区内无污染施工，施工人员采用泥浆反输技术。
2
This article mainly introduces the design of coiler driving for aluminium strip non-reversing cold rolling mill, and the mechanical gear shift has been application to this driving design.
介绍了铝带不可逆冷轧机卷取传动设计的一般方法，以及机械换档方法在传动设计中的应用。
3
The problem in the old non - reversing speed control system of LS-2 D. C casting machine with rope driving are analyzed and discussed;