... 最佳信号电平：optimum signal level 最佳效率点：best efficiency point 最佳通信量的频率：frequency of optimum traffic ...
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The best efficiency point 最佳效率点
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During the course of polishing, there is always a best pressure point between workpieces and sand belt for the life of sand belt and the polishing efficiency.
工件在抛光过程中，无论为延长抛光带的寿命，还是为提高抛光的效率，工件与抛光带之间都存在一个最佳的压力问题。
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