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2013-05-23 12:21
求翻译：The main pumping performance can be described by entrainment ratio (Em, the ratio of mass flow rate of secondary fluid to that of primary fluid) affected by pressure ratio (K, the ratio of back pressure to the suction pressure) and expanding ratio (B, the ratio of primary fluid pressure to the secondary fluid pressure)是什么意思？ 待解决
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The main pumping performance can be described by entrainment ratio (Em, the ratio of mass flow rate of secondary fluid to that of primary fluid) affected by pressure ratio (K, the ratio of back pressure to the suction pressure) and expanding ratio (B, the ratio of primary fluid pressure to the secondary fluid pressure)
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