全部

1·The defects in WGL-12fault recorder are introduced.

分析了WGL - 12型录波器存在的缺陷。

2·The measuring principle, hardware circuit principle and software design of WGL-1 intelligent mining borehole depth and dip meter are introduced.

介绍了智能WGL-1型采矿中深孔深度倾角测量仪的测量原理，硬件电路原理及软件设计。