1.
They winked their flashlights hopefully.
他们怀着希望将手电筒一开一关地打信号。
2.
There is a switch on the wall for turning on the lights.
墙上有一开电灯的开关。
3.
click the light (switch) on [off]
喀嗒一声打开[关掉]电灯开关
4.
Be sure to turn off the lights when you leave the room.
离开房间时，一定要关灯。
5.
Press the button that works the machine.
按一下启动机器的开关。
6.
He pressed the push-to-talk bar.
他按了一下谈话开关。
7.
Safety features include a switch.
安全设施包括一个开关。
8.
When you switch a machine on, it comes into operation.
你一按机器开关，机器就开始运转。
9.
Switch the power off before moving either of these switches.
在拨动任一开关前，必须断开电源。
10.
Some Results on B-I-Open Sets and the Weak Open Mappings;
关于B-I-开集及弱开映射的一些结果
11.
The other technician advises installing a switch.
另一个技术人员劝告安装一个开关。
12.
A motorman tried to pry Rex's jaws open with a switch rod.
一个司机想用一根开关棒撬开雷克斯的嘴。
13.
There is no switch that can turn life on or off.
没有一种能够启动或关闭生命的开关。
14.
Turn off the transportation switch and have the lamp insolated for2 days before first using it.
第一次使用时必须关闭运输开关暴晒两天后再打开运输开关使用。
15.
Cut the wire and attach its free ends to a switch.
把导线切开，把断开的两端接到一个开关上。
16.
To move(a lever or switch)in order to activate, deactivate, or control a device.
启动移动一个（杠杆或开关）以开动、关闭或控制一个装置
17.
A switch or regulator that controls or activates and deactivates another mechanism at set times.
调节开关一个在预定时间控制或开关另一个机械装置的开关或调节器
18.
REPAIRING ALL DOORS FAILING TO LOCK AND UNLOCK FROM ONE SWITCH
修理所有因某一个开关而锁不上或打不开的门