At the time it was a disappointment because it was a sharp deceleration from prior decades.
但是在那时这个数字令人失望，因为这一涨速与前几十年相比已急剧下滑。
The low inertia of the rotor enhances the quality of the mechanical response of the motor, shortening the acceleration and deceleration time.
低转动惯量的转子提高了电机机械响应的质量，从而缩短了电机加速和减速的时间；
He mentally calculated the train's deceleration rate and groaned. We'll never stop in time.
他心里计算着火车的减速速度，痛苦地哼了—声。我们绝对不可能及时停车的。
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