英语词汇“keystone joist”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	keystone joist
释义	WordReference Random House Unabridged Dictionary of American English © 2024 key′stone joist′, Buildinga reinforced-concrete joist with sloping sides and the top wider than the bottom.
随便看	perfumy perfunctorily perfunctoriness perfunctory perfusate perfuse perfusion pergamenian pergamum pergelisol pergola pergolesi pergonal perh. perh perhaps perhydrogenate perhydrogenation perhydrogenise perhydrogenize peri- peri periander perianth perianthial

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