power mains

 
  • 动力干线,供电网

power mains的用法和样例:

例句

  1. The water mains had numerous breaks, with the great majority of the breaks occuring in sand, silt, or filled ground.
    自来水干线有许多处破裂,但绝大多数的破裂发生在砂地,淤泥地或回填土中。
  2. Oil rigs pumped on it and power lines zigzagged all over it.
    在这片土地上,牲畜在吃草,钻塔在抽油,输电线纵横交错,四通八达,货车在缓慢吃力地行驶。
  3. Today many independent producers sell power near and far over transmission lines they do not own.
    现在有许多独立发电厂透过不是自己建造的输电线,将电力卖到远近各处。
  4. Please turn off the electric power.
    请把电源关掉。
  5. It is sometimes mistaken for a power supply hum.
    有时候,亚音频会被错误的认为是电源交流声。
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