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【单选题】
中小容量异步电动机的短路保护一般采用熔断器 , 过载保护一般采用热继电器 , 二者 ( )A.
可以互相代替
B.
不可以互相代替
C.
1KW 内可以互相代替
D.
1.8KW 内可以互相代替
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举一反三
【简答题】The function of power train (1) changing the speed, torque and direction by transmission. (2) transmitting power from the engine to the drive wheels. (3) cutting off the power by clutch. (4) th...
【单选题】The drive wheels of the vibratory roller are rubber-tyred and filled with water and calcium-( or magnesium) chloride to _______ the weight.
A.
decrease
B.
increase
C.
enlarge
D.
reduce
【简答题】请将这句话 The output shaft is a splined shaft that connects directly to the drive shaft through the differential to the drive wheels of the car.翻译成中文。
【简答题】如果缺少什么?地球上所有生物将会全部灭绝，人类也不例外?
【简答题】请翻译: The output shaft is a splined shaft that connects directly to the drive shaft through the differential to the drive wheels of the car.
【单选题】converts the reciprocating motion of the pistons into a rotary motion for the drive wheels.
A.
Crankshaft
B.
Camshaft
C.
Flywheel
D.
Timing belt
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