同根派生 electric mains相關(guān)詞英漢例句Power plants on the electric grid use fuel to produce electricity, however there are large quantities of waste-heat produced which often go unused.發(fā)電廠的電力網(wǎng)使用的燃料來産生電力,但有大量的餘熱産生往往去使用。electric mains更多例句