... orifice coefficient 孔口系数 orifice equation 孔口方程 orifice gas 喷嘴气体 ...
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运用孔口出流公式、伯努力方程、沿途泄流公式及损失规律，建立了泄流管路的通用方程组。
By means of formula of orifice come out, Bernoulli equation, formula of discharge along way and law of lose, general group of equation of discharge flow was established.
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