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

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	ironical ironically ironicalness ironies iron(ii) carbonate iron(ii) chloride iron(ii) gluconate iron(ii) hydroxide iron(iii) acetate iron(iii) bromide iron(iii) chloride iron (iii) hydroxide iron(ii,iii) oxide iron(iii) nitrate iron (iii) oxide iron(iii) oxide iron(iii) oxide-hydroxide iron(iii) phosphate iron(ii) oxide iron(ii) sulfate iron(ii) sulfide iron (ii) sulphate iron index iron industry ironing

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