英语词汇“mantle ring”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	mantle ring
释义	mantle ring 垫环,支圈
随便看	active tracking system active trade active trade balance active trading active trading fleet active tramp active transducer active transfer active transition active transport active transports active transpot active-treatment active treatment active trimming active trust active trustee active trusts active tuberculosis active turnover active TV active two-port active two-terminal network active type activetype 齪齫齬齭齮齯齰齰舌缄唇齱齲折受折变折叠折叠尺折合折回折头折子折子戏折子钱