英语词汇“hammer 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	hammer beam
释义	hammer beam noun : either of the short horizontal beams or cantilevers projecting from the top of a pair of opposite walls to support a roof principal for a Gothic roof and thus dispense with the necessity for a tie beam
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