“chimney apron”的概念、定义、翻译、参考文献-科学参考

单词	chimney apron
释义	chimney apron [`chim·nē ´ā·prǝn] ^{BUILDING CONSTRUCTION} A flashing made of a nonferrous metal, such as copper, that is built into the masonry of the chimney and the roofing material at the place where the roof is penetrated by the chimney.
随便看	back-echo reflection backed cloth back edging back electromotive force back-emission electron radiography back end back-end system backfill back fillet backfire backfire antenna backflap hinge backflash backflooding backflow backflow connection backflow preventer backflow valve back focal length backfolding backfurrow back gearing Back-Goudsmit effect back gouging background

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