英语词汇“class-c door”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	class-c door
释义	class-C door class-C door A door having a ¾-hr fire-endurance rating, suitable for use as a closure in a class-C opening.
随便看	cfeom1 cfeom3a cfeom3b cfep cfepa cfepe cfeph cfeps cfer cfere cferr cfers cfes cfesa cfesd cfesi cfess cfest cfest-inv cfet cfetc cfetp cfe treaty cfets cfett

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class-C door