【单选题】Refer to Exhibit 3-9. In order to move from Point D to Point C, the economy will have to give up:
C.
200 bushels of soybeans.
【判断题】在变电所中,母线是电气主接线的重要组成部分。母线的作用是汇集、传输和分配电能。
【单选题】{ In order to find better living environment, he decided to move to the west of the country. }
【简答题】母线主要是_______、______和传送电能,故又称汇流排。
【判断题】短路电流计算的目的主要是供母线、电缆、设备等选择和继电保护整定计算之用。
【单选题】As the piston moves inside the cylinder, _______is filled with the clearance in order to move smoothly .
【判断题】单母线接线的主要优点是接线简单、设备少、操作方便、投资少,便于扩建。()
【单选题】Press the wheel and hold it down. Move the mouse in order to pan the view. 这个操作的结果是
【判断题】铝及铝合金母线焊接过程的主要工序是对口装配、施焊。