线路两端的电压相量之差称为（）。 ["电压调整","电压损耗","电压偏移","电压降落"]
进线隔离柜如何操作（10KV）？
计件薪酬制特点是什么？
A mechanical davit is designed to automatically（）. ["position the boat at the embarkation station","lift the boat off the inboard chocks","energize the winch for the falls","set the brake on the winch"]
直流屏如何操作？
劳动行政部门依法对哪些实施劳动合同制度的情况进行监督检查？
