on/offCOCA⁵⁴⁴¹⁹BNC³⁶¹⁷⁴Economist⁵³⁵⁸¹⁺¹ 基本例句 n.打开/关掉 An automatic ON/OFF circuit is designed according to the power system fault recoder and analyser. 针对电力系统故障录波装置设计了一套分析和远传自动开停机电路。 dictall Complete the real time switch of CD player, MP3 player and tuner, control the ON/OFF of the equipments; 完成 CD播放机、 MP3播放器、调谐器等资源实时转换，控制设备电源的启闭；51sole