This locks the engine to the transmission input shaft, causing them to spin at the same speed.

这样使发动机和传动系输入油可靠地接合，使它们以相同的转速运转。

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At a shift-down time, the target value of the engine speed is set according to the actual speed determined from the signal of the input shaft speed of the transmission system.

在换低速档时，根据从变 速装置的输入轴转速的信号求得的实际车速，来设定发动机转速的目标值。

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