短語(yǔ)詞組短語(yǔ)stand -by power unit 備用發(fā)電機(jī)組Stand -by Power Consumption Test 待機(jī)功耗automatic stand -by power switching device 備用電源自動(dòng)投入裝置emergency stand -by power supply 事故應(yīng)急電源 返回 stand-by power