mains [meɪnz]

例句:

• The Auto Compact Disc Cleaner can run off batteries or mains.
  这种光盘自动清洗机可用电池或电源两种方式驱动。
  来自柯林斯例句
• The capital has been without mains water since Wednesday night.
  从周三晚上开始，首都就停水了。
  
• He is using your mains electricity to recharge his car battery.
  他在用你家里的电源给他的车载蓄电池充电。
  
• The capital remains without mains electricity and running water.
  来自BBC
• One such area is keeping the mains power frequency "on-point".
  来自BBC
• The new mains will feed the new town of Cranbrook when it is built.
  来自BBC