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)使用的燃料來產(chǎn)生電力，但有大量的余熱產(chǎn)生往往去使用。electric mains更多例句