单词	closed impeller
释义	DictionarySeeimpeller closed impeller impeller impeller The rotating member in a pump consisting of a disk with vanes attached to it; moves liquid by accelerating the liquid radially outward.
随便看	fdev fdew f&df fdf fdfa fdfaf fdfars fdfc fdfd fdfd-bie fdfds fd/fe fdfe fdfem fdff fdfg fd/fi fdfi fdfib fd/fl fdfl fdfm fdfn fdf orbital and mission aids transformation system fdfp

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