electric mains

常見例句

• 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。
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