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hub ratio of centrifugal impeller
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hub ratio of centrifugal impeller
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工学
离心式叶轮轮毂比
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hub ratio of centrifugal impeller
离心式叶轮轮毂比
离心叶轮进口处轮毂直径与叶轮外径的比值。是离心式压缩机的重要结构参数。又称轴径比。
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precambrian
precambrian flora
precapiliary resistance vessel
precapillaly sphincter
pre-capitalist law of population
precarburization
precast
pre-cast concrete
precast concrete double T slab
precast concrete frame-shear wall(core wall)structure
precast concrete frame structure
precast concrete frame structure with specially shaped columns
precast concrete shear wall structure
precast concrete structure
precast concrete track beam
precast pavement
precast prestressed composite floor slab
precast prestressed hollow floor slab
pre-cataclysmic binary
pre-cataclysmic variable
precategory
precaution
precautionary approach
precautionary demand for money
precautionary principle
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