Warning: file_put_contents(/www/wwwroot/ppbbu/80125.cn/cache/6221ddb06e972c2ff4ebe34f48cbb68a.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/80125.cn/index.php on line 58 electric mains是什么意思，electric mains的翻译，electric mains音标、读音、用法和例句_食材铺反向词典
Power plants on the electric grid use fuel to produce electricity, however there are large quantities of waste-heat produced which often go unused. 发电厂的电力网使用的燃料来产生电力，但有大量的余热产生往往去使用。