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The electromotor power rating and the motor gear ratio to the drive wheels can then be determined based on the acceleration and gradeability. 然後再通過加速或者爬坡的需要來確定電動(dòng)機(jī)的額定功率以及電動(dòng)機(jī)與敺動(dòng)輪之間的傳動(dòng)比。