In general, the volumetric efficiency of pump power higher than the pump.
总的来说，容积泵的效率高于动力式泵。
Efficiency first besides Justice "is the general principle of our distribution system."
“效率优先，兼顾公平”是我国分配的总原则。
Efficiency first besides Justice "is the general principle of our distribution system."
“效率优先，兼顾公平”是我国分配的总原则。
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