di·meth·yl /ˌdaɪˈmɛθəl/ 二甲基
di·meth·yl /(ˈ)daɪˈmɛθəl/ 形容詞 二甲基
Di·meth·yl n. Chem. Ethane; -- sometimes so called because regarded as consisting of two methyl radicals. See Ethane. ◄ ►