英语词汇“principal rafter”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	principal rafter
释义	WordReference Random House Unabridged Dictionary of American English © 2024 prin′cipal raft′er, Buildinga diagonal member of a roof principal, usually forming part of a truss and supporting the purlins on which the common rafters rest. See diag. under king post. 1655–65
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