单词 | 动力单元 |
例句 | DEFINITIVE EXAMPLES 权威例句〔power pack〕A usually compact, portable device that converts supply current to direct or alternating current as required by specific equipment.电源组,动力单元:通常能折叠手提的装置,能按照具体设备的要求将供给的电流转化为直流电或交流电美国传统 |
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