1.
"Shutdown the PC, disconnect the power cord"
关闭电脑电源并且断开电源线。
2.
Disconnect power. Wait 60 minutes before opening lamp housing
断开电源,等60分钟后再打开灯罩板.
3.
Set the main switch selector to (L) lock to turn off the power.
把主选择开关转到l（锁定）,断开电源。
4.
Switch the power off before moving either of these switches.
在拨动任一开关前，必须断开电源。
5.
Warning: To avoid electric shock or injure, cut off power before checking and repairing.
警告：为避免触电或伤害，在检修前请先断开电源。
6.
Locks the operations and turns off the camera. Set l (lock) when the camera is not used.
锁定操作或断开电源。相机不用时请设置到l。
7.
Make sure switch is OFF before turning on power.
接通电源前,应确保开关处于断开位置。
8.
This fact enables the supply to be turned off as required by a switch.
这就使我们在需要断电时就能用开关切断电源。
9.
Safety main electric switch handle on the door tothe electric cabinet, which cuts off the main supply when the door is opened.
电柜门把手联动电源开关，在门被打开时总电源被自动切断。
10.
Heater must be disconnected from power supply before servicing switch.
在修理热水器开关前,务必切断电源
11.
Make sure you disconnect, the television from the mains supply before you open up the back.
打开后盖之前，一定要把总电源切断。
12.
Disconnect the router from UTP cables (not the power cable).
断开路由器的网线（不是电源线）。
13.
Failure diagnosis and analysis of DC/DC switching power supply single-chip
DC/DC单片开关电源故障分析与诊断
14.
The Democratic victors were flushed with congratulations.
获胜的民主党人开始源源不断地接到贺电。
15.
Main breakers provide overcurrent protection and a single disconnect point for all power in a switchboard or device.
主开关能够提供过电流保护，是配电盘或设备的电源断开点。
16.
press the on/off switch
按开关通电[断电]
17.
"Before any work is done on the heater, disconnect all power to the heater by opening the switch at the main electrical circuit breaker of fuse box."
在调节温度控制器的温度设置之前,请首先关闭电源开关,切断电源。
18.
Switch controller guarding against forgetting to turn off power supply based on hardware control
基于硬件控制防遗忘关断电源开关控制器