... 机械的现代设计modern machine design 机械调速mechanical speed governors 机械动力设计dynamic design of machinery ...
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Compared with mechanical or hydraulic speed governors, the electric ones have their own specialty which cause operators not to understand what should be done while they are in trouble a little.
比较机械式和液压式调速器，电子调速器有其独特的地方，这使得操作人员在调速器出现一些小问题时往往不知所措。
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