... Speed range 主轴转速 economical speed range 俭速航程 Restricted speed range 转速禁区范围 ...
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economical cruising speed range 经济巡航速度续航力
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The lapse speed operation ci pumps is a kind of energy-saving regulation. The economical operation of the system presuppose the determination of high-efficient lapse speed range of pumps.
水泵降速运行是水泵的一种节能调节方式,确定水泵的高效降速范围是保证系统经济运行的前提。
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