differential pump 差动泵 ; 差压泵
differential plunger pump 差动柱塞泵 ; 差动式柱塞泵
differential pump system 差分抽运系统
differential pump pressure 泵的压差
differential getter pump 差动式吸气泵
differential ion pump 差动电离泵
differential oil pump relay 差速器机油泵继电器
differential steering pump group 差动转向泵组件
differential oil cooler pump 差速器机油冷却器泵
Based on the motion function and characteristic in different modes of water system of air-conditioning, the differential of circulating water volume pump and elevation of pump were analyzed.
根据空调水系统在不同工况下运行的性能与特点，分析冬夏及部分负荷运行时，空调水系统的流量和扬程差异。
Based on the motion function and characteristic in different modes of water system of air-conditioning, the differential of circulatory water volume pump and elevation of pump were analyzed.
根据空调水系统在不同工况下运行的性能与特点，分析冬夏及部分负荷运行时，空调水系统的流量和扬程差异。
This paper calculates, analyses and determines the pressure point of maximum of ouput power and saving-energy efficiency of differential pressure and Limited pressure variable displacement pump.
本文计算、分析、确定了限压式变量系和差压式变量泵输出功率最大值和节能效率最大值的压力点；
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