1. 變壓器的功用就是把電力從一種電壓改變為加一種電壓。
   The function of the transformers is to change electric power from one voltage to another.
2. 擴展器在某一給定范圍的輸入電壓內產生較大輸出電壓的轉換器
   A transducer designed for a given range of input voltages that produces a larger range of output voltages.
3. 就模擬輸入而言，使模數轉換器不能區(qū)別其變化的超范圍的絕對電壓值。超載值對于正輸入和負輸入可能不同。
   For analog inputs, any absolute voltage value above which the analog-to- digital converter cannot distinguish a change. The overload value can be different for plus and minus inputs.
4. 使用低電壓的在低電壓下運行的
   Operating at low voltage.

電的英語翻譯：

壓的英語翻譯：