“antismudge ring”的概念、定义、翻译、参考文献-科学参考

单词	antismudge ring
释义	antismudge ring [¦an·tē¦smǝj `riŋ] ^{BUILDING CONSTRUCTION} A frame attached around a ceiling-mounted air diffuser, to minimize the formation of rings of dirt on the ceiling.
随便看	marine littoral faunal region marine marsh marine meteorology marine microbiology marine navigation marine propeller marine radio beacon marine railway marine rainbow marine salina Marinesco-Sjögren-Garland syndrome marine sextant Marinesian marine snow marine stack marine swamp marine terminal marine terrace marine traffic marine transgression marine weather observation Mariotte's law MARISAT marita maritime air

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