扭折
参考答案:
在滑移面上的曲折滑移曲线。
三相星形绕组的交流电动机,它的线电流与相电流()。
A.差3倍;
B.差2倍;
C.不相等;
D.相等。
_______the danger from enemy attacks, people had to face the lack of food, clothing, fuel and almost everything.
A.As far as
B.As long as
C.As well as
D.As soon as