单词	等效四线系统
释义	等效四线系统equivalent four-wire system
随便看	current collecting device current collecting methods current collecting noise current collecting shoe current collection current collection, bipolar current collector current collector down switch current collector retracting handle current collector select switch current command file current commonly-used chinese character current commonly-used hanzi current commutation current comparator current comparators current comparison protection current compensation current compensator current component current condenser current-conducting current confinement of semiconductor current confinement of semiconductor--laser current constant