n.总线；主要管道
名词main的复数形式.
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。
n.剩余物；遗迹；遗体
n.主要支持
n.主帆；大桅帆
n.主要原因；主要推动力；主发条
n.骨灰
