英语词汇“floor collar”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	floor collar
释义	floor collar floor collar [′flȯr ‚käl·ər] (engineering) A relatively narrow upright structural part fitted around the periphery of a hole where a pipe passes through to prevent drainage water from entering the hole.
随便看	rsf-fs rsfg rsfgp rsfh rsfi rsfj rsfl rs flip-flop rs-fmp rsfmp rsfn rs-fo rsfo r&sfp rsfp rsfpa rsfpp rsfq rsfr rsfrr rsf (rudolph steiner foundation) social finance rsfs rsfsr rs&ft rsft

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