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【单选题】
在相同的时间内,一束波长为 l 的单色光在玻璃中和在水中A.
传播的路程相等，走过的光程相等．
B.
传播的路程不相等，走过的光程相等
C.
传播的路程相等，走过的光程不相等
D.
传播的路程不相等，走过的光程不相等．
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【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 function of is to transform the reciprocating movement of pistons into Rotary movement of crankshaft,offering torque to make the drive wheels turn.
A.
crank mechanism
B.
valve train
C.
cylinder block
D.
connecting rod
【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】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
【单选题】The function of is to transform the reciprocating movement of pistons into rotary movement of crankshaft, offering torque to make the drive wheels turn.
A.
connecting rod
B.
crank mechamism
C.
valve train
D.
cylinder block
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