全新版大学英语快速阅读英汉对照UNIT2(4)

安装在底部和两边u形导轨的摇篮,火车。当

electric power is switched on, the coils on the train and in the guideway produce a magnetic

电力时,火车上线圈和导轨产生的磁场

field with north and south poles. The magnetic forces between the coils on the train and the

南北极领域。线圈之间的磁力的火车上了

coils in the guideway can be made to attract or repel each other by changing their polarity.

在导轨线圈可以互相吸引还是排斥改变他们的极性。

The train is propelled by magnetic attraction between the magnets aboard the train and those

火车的推动下的磁体磁场之间的吸引力,上了火车

on the guideway. As the successive and rapid bursts of magnetism move from coil to coil with

在导轨防护装置。连续的磁性微球的突然迅速离开卷卷

lightning speed, the train accelerates after them, resulting in the forward movement of the

闪电般的速度,火车加速追赶他们,造成向前移动

train. In summary, then, the magnetic coils on the train are attracted by the opposing

火车。总之,那么,磁线圈在火车上反对所吸引

polarity of the guideway coils immediately ahead of them.

同时,我们立即线圈导轨超过他们。”

Magnetism is also used to lift the train off the guideway to reduce friction, diminishing

磁力是也用于电梯火车从导轨为了减少摩擦,减少

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