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發(fā)布時間: 2012-11-13 09:37
正文摘要:參數(shù)和性能曲線,是20°C水試驗得出。 當(dāng)液體黏度υ較大時,會造成大的能量損失,因而會使泵的Q、H減小,h降低,P和Dha增大。 1.被輸送液體的υ在10~2 ... |
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