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The concentrate delivery system employs a positive displacement pump.
浓缩物递送系统采用正位移泵。
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A variable displacement pump could save energy during the long holding time.
变量泵可在长的保压时间内节省能源。
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A variable displacement pump could save energy during the long holding time.
变量泵可在长的保压时间内节省能源。
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