英语词汇“trolley beam”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	trolley beam
释义	trolley beam trolley beam An exposed steel beam, attached to the underside of the structure above; provides support for and acts as a track for a trolley crane.
随便看	septuagint septuaginta septuagintal septuagint chronology septuagint version septuary septugiant septula septula of testis septulate septula testis septulum septulum testis septum septum accessorium septum atriorum cordis septum atrioventriculare septum (brain) septum bulbi urethrae septum canalis musculotubarii septum cervicale intermedium septum clitoridis septum corporum cavernosorum clitoridis septum endovenosum septum femorale

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