单词：mains
n. 电源, 网路, 干线
[电] 输电干线
[电] 输电干线
n any very large body of (salt) water
n a principal pipe in a system that distributes water or gas or electricity or that collects sewage
n a principal pipe in a system that distributes water or gas or electricity or that collects sewage
词型变化：名词复数形式 : mainss
mains的用法和样例：
例句
- In electronics, undesirable low frequency currents interfering with a desired signal, and usually caused by a poorly screened alternating mains supply.在电子学领域，一种不希望发生的低频电流，它干扰所要求的信号。通常这种现象是由于交流供电线路屏蔽不良引起的。
- My new house is not yet connected to the mains.我的新房子还没接上水、 电、 煤气呢。
- I turned the gas off at the mains before I went out.我出门之前，把煤气的总阀关掉了。
- The electricity supply has been cut off/disconnected at the mains.电力供应已在电源处截断。
词汇搭配
- mains transformer电源变压器,馈电变压...
- mains supply干线供电,市电电源,...
- mains hold网路同步
- mains side电源侧
- mains receiver交劣收机,交流收音机...
- mains voltage电源电压
- mains ripple供电电压波动,电压脉...
- mains hum电源交流哼声...
- mains unit供电整流器
- mains filter电源滤波器
- mains switch电源开关,馈路开关...
- mains frequency电源频率
- all mains万能供电的
- mains failure停电,电力网毁坏...
- lighting mains照明网络,照蒙线...
- electric mains电力网
- power mains动力干线,供电网...
- mains aerial电源线天线
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