The water content in insulating paper in transformer is the one of factor that affects transformer life, which has obvious negative influence for the ageing of transformer.
变压器内绝缘纸中的含水量是影响变压器寿命的因素之一，对变压器的老化有着明显的负面影响。
The elevator door was driven by door motor. If the motor was over heated, it would speed up the ageing of insulating material and shorten the life of the motor.
门电机担负着电梯门的动力驱动，若电机过热，会加速绝缘材料老化，缩短电机的使用寿命。
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