electrolessadj.无电的electropref.电的；电子的；电解的=electr-.electropneumatic semaphore电空臂板信号机electroless cobalt plating化学镀钴electro coupled oscillator电子耦合振荡器electro-hydraulic dement电液元件electromotive dental drill电动牙钻机electromagnetic fathometer电磁测深仪electro-magnetic effects电磁效应Electrophysiological model电生理模型electromagnetic microrelay电磁微继电器electrolytic acid cleaning电解酸洗