The electricity supply has been cut off at the mains.
电的供应在电源处被切断。
The house is far from water mains and electricity and relies on its own generators.
这座房子远离自来水总管和供电网，依靠自备的发电机。
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。
Water mains are hard to inspect, particularly if they are underground.
供水主管道特别是地下管线很难监测。
检查大型灭火系统并报告。
大型灭火系统加压。
Start the mains switch of control panel.
打开控制面板电源开关。
The area has now been wired up to the mains.
这个地区现在已经接通电源了。
Know how to turn off your gas and water mains.
了解如何关闭煤气和水管。
The new house is not yet connected to the mains.
新房子(的水电)还没接上总管道。
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 has been without mains water since Wednesday night.
从周三晚上开始，首都就停水了。
High ability against mains fluctuation, wide application range.
抗电网波动能力强，适应范围广。
The electricity supply has been cut off/disconnected at the mains.
电力供应已在电源处截断。
Carrier current systems use the power line mains to transfer information between remote locations.
电力线载波通信系统利用电力线来实现远程数据传送。
Carrier current systems use the power line mains to transfer information between remote locations.
电力线载波通信系统利用电力线来实现远程数据传送。
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