英语词汇“trough girder”的中英文释义、用法、翻译及短语词组-英汉翻译词典

单词	trough girder
释义	trough girder 英?[tr?:f ?g?:d?] 美?[tr?f ?ɡ?d?] 释义槽形梁，门形梁，槽钢桁材行业词典铁道槽型梁???
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trough girder