不揮發(fā)性fixity: n. = fixedness. involatile: 不揮發(fā)的; 不揮發(fā)性involatile agent: 非揮發(fā)性毒劑involatile matter: 難揮發(fā)物involatile sample: 不揮發(fā)性試樣下載手機詞典可隨時隨地查詞查翻譯