[主观题] 【英译中】The internal combustion engine, as its name indicates, burns fuel within the cylinders and converts the expanding force of the combustion into rotary force used to propel the vehicle. The actions taking place in the engine cylinder can be classified into four stages, or strokes. "Stroke" refers to piston movement; a stroke occurs when the piston moves from one limiting position to the other. The upper limit of piston movement is called TDC (top dead center) .The lower limit of piston movement is called BDC (bottom dead center). A stroke is piston movement from TDC to BDC or from BDC to TDC. In other words, the piston completes a stroke each time it changes its direction of motion.

1、[主观题]【中译英】转向螺杆不直接接触转向螺母的螺纹，其间装有很多钢球。

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2、[主观题]【中译英】齿条从两侧伸出来，与拉杆连接。

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3、[主观题]【英译中】The electric system supplies lighting and driving power for the automobile. It cranks me engine for starting. It supplies the high-voltage surges that ignite the compressed air-fuel mixture in the combustion chambers. The electric system includes the battery, generator, starting system, ignition system, lighting system, horn system, radio and other devices.

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4、[主观题]【英译中】 The modern self-starter consists of an electric motor, called a starter motor or sometimes just plain starter that is used in place of the early hand crank to turn the engine over.

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5、[主观题]【中译英】变速器是用类改变发动机曲轴送到驱动轴的转矩，完成倒车并在汽车长时间停车或滑行时分离发动机和动力传动系统的装置。

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