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	ha'pennies ha'penny hapenny hapes hapet hdhv hdi hdi-45 hdia hd-ibdfe hdic hdicm hdicp-cvd hdi (disambiguation) h dieker hdif hdifama hdifat hdifilwy hdifstwy hdig hdigg hdii hdil hd-ila

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