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發(fā)布時(shí)間: 2012-11-5 17:01
正文摘要:離心泵的H與葉輪出口處的u2有很大關(guān)系。銘牌失落的離心泵可按經(jīng)驗(yàn)公式估算其額定揚(yáng)程: 式中,D。為泵吸口直徑,(英寸) |
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