基本解释液躰比重計英汉例句雙語例句Hydrometer: An instrument used for measuring the specific gravity of a liquid or solution.比重計：量度液躰或溶液的比重的儀器。specific gravity hydrometer更多例句词组短语短語hydrometer specific gravity hydrometer 液躰比重計specific gravity hydrometer更多词组专业释义物理學液躰比重計