为保持相当的扭转，扭矩也应该具有相同的比例。
To preserve the same twist, the torque should also be the same.
如果一个粘性耦合作为一个跨桥差别已转交所有扭矩发动机，它必须是相当大的。
If a viscous coupling serving as an inter-axle differential has to transmit all the torque from the engine, it must be fairly large.
例如，某些类型的车辆花费了相当大的比例的运行时间在高扭矩低齿轮。
For example, some types of vehicle spend a considerable proportion of their running time at high torque in low gear.
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