The phone must not be working in bypass mode, i. e. it must be connecting directly to the other extension.
2
控制特点是采用了比例旁路、通过小选器切换控制模式等控制方法。
The control characteristic of the Simadynd controller is that it adopts the controlling methods of proportional bypass and switching control mode via minimal selection.
Through optimizing, we suggested the measure of bypass draw off system which can solve draw off problem effectively. This suggested a new mode at inclined long wall mining.