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	placenta-specific atp-binding cassette transporter placenta-specific mdr protein placentas, placentae placenta spuria placenta succenturiata placentate placentation placenta triloba placenta tripartita placenta triplex placenta uterina placenta velamentosa placentia placentia bay placentiferous placentiform placentin placentious placentitis placentography placentoid placentology placentoma placentophagia placentophagy

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