单词	rotameter
释义	rotameter noun ro·​ta·​me·​ter ˈrō-tə-ˌmē-tər  rō-ˈta-mə-tər  : a gauge that consists of a graduated glass tube containing a free float for measuring the flow of a fluid Word History Etymology Latin rota + English -meter First Known Use 1897, in the meaning defined above Medical Definition rotameter noun ro·​ta·​me·​ter ˈrōt-ə-ˌmēt-ər  rō-ˈtam-ət-  : a gauge that consists of a graduated glass tube containing a free float for measuring the flow of a liquid or gas
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