活塞把燃料的潜在能量转化成为动能，其将会转动曲轴。
The piston converts the potential energy of the fuel into the kinetic energy that turns the crankshaft.
当大电流流过汽车启动机的线圈时，可以产生足以让发动机曲轴转动的力矩。
An automotive starter motor has many conductors and USES a lot of current to create enough rotational force to crank the engine.
曲轴的作用是把往返力变为旋转动力。
The crankshaft serves to change the reciprocating power into rotary power.
当从动盘的内侧有一些叫作扭转弹簧的小螺旋弹簧，这些弹簧使得从动盘中部相对从动盘毂能有轻微转动，从而吸收曲轴的扭转振动。
These springs are called torsional springs. They let the middle part of the clutch disc turn slightly on the hub. Thus, the springs absorb the torsional vibrations of the crankshaft.
随著曲轴的转动，曲柄销绕主轴作圆周摆动。
As the crankshaft rotates, the crankpin swings in a circle around the shaft.
发动机的第五个系统是起动系统，起动系统的作用是把电能转变为机械能推动曲轴转动。
The fifth is starting system and its purpose is to change the electrical current into the mechanical energy to push the crankshaft around.
我们已知道燃烧产生高压，并推动活塞下行，带动曲轴转动。
We have noted that this combustion produces a high pressure that pushes the piston down so that the crankshaft is rotated.
发动机的一个工作循环分布在活塞的四个行程中，一个完整的工作循环曲轴需要转动两圈。
The cycle of operations is spread over four piston strokes. To complete the full cycle it takes two revolutions of the crankshaft.
为实现在将曲轴水平放置绕主轴转动条件下，对单拐或多拐曲轴的主轴和曲柄轴进行激光淬火和激光熔覆，建立了激光作用于曲拐表面形成螺线时的光斑轨迹方程。
It aims to realize the laser quenching and cladding for the principle axis and crank of single or more crank while the crankshaft is laid horizontally and rotating around the principal axis.
由于曲轴系统装有转动惯量很大的部件，所以曲轴扭转振动的自振频率比较低，往往会在工作转速范围内产生共振。
The crankshaft system installed with component which has enormous moment of inertia that leads to lower frequence of forced torsional vibration for crankshaft.
曲轴转动时产生“土豆炮复位”那样的效果。
As the crankshaft revolves, it has the effect of "resetting the cannon."
之后发动机曲轴转动起来，不需离合器和变速器输人轴的转动。
The engine crankshaft can then turn without turning the clutchdisc and the transmission input shaft.
曲轴转动，动力传动系统将发动机的转动运动传给汽车车轮，从而使车轮及整车转动起来。
The crankshaft is thus made to rotate; the rotary motion is carried through the power train to the car wheels so that they rotate and the car moves.
尽管你可能够逃脱为当转动发动机曲柄时产生的摇动而楔入断裂的木棒，由此可顺利地拆下曲轴皮带轮螺栓，也许你知道这不是最好的做法。
While you may be able to get away with wedging your breaker bar against the cradle and cranking the engine over to remove the crank pulley bolt, you know it's not the best practice.
发动机的第四个系统是起动系统，起动系统的作用是把电能转变为机械能推动曲轴转动。
The fifth is starting system and its purpose is to change the electrical current into the mechanical energy to push the crank-shaft around. by means of this, the engine can be started.
发动机的第四个系统是起动系统，起动系统的作用是把电能转变为机械能推动曲轴转动。
The fifth is starting system and its purpose is to change the electrical current into the mechanical energy to push the crank-shaft around. by means of this, the engine can be started.
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