英语词汇“ridge purlin”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	ridge purlin
释义	ridge purlin ridge purlin 1. Same as ridgeboard. 2. A purlin, placed at the apex of a roof, which rests against the upper ends of the rafters.
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