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。
This new method can shorten the period of development, and save much manpower, material resources, which now is becoming more and more important in the development of chain.
这种方法可以缩短开发周期，节省了大量的人力、财力、物力，在研制链传动产品中起到了越来越大的作用。
The precision plastic formed technique can save raw material and power, shorten manufacture cycle, obtain complicated shape product, improve product's quality and strengthen market competition.
精密成形技术不仅能节省原材料和能源，缩短生产周期，还能获得复杂形状的制件，提高产品质量和增强其市场竞争力。
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