alkylsn.烷基类(链烃基化合物)alkyln.[化]烷基adj.含烷基的alkyl arsine oxide烷基胂化氧alkyl chain length烷链长度alkyl-cycloalkyln.烷基环烷基alkylate sulfonate烷基化磺酸盐alkyl benzene unit烷基苯装置alkylamide sulfate烷基酰胺硫酸酯alkyl methacrylate甲基丙烯酸烷基酯alkylbenzotriazole烷基苯并三氮唑alkyl silicone oil烷基硅酮油alkyl benzaldehyde烃基苯甲醛