She demonstrated how an operated switch activates the electrical system safely.
她示范了如何通过一个控制开关来安全地启动整个电力系统。
A time switch can help reduce electricity bills by limiting appliance use.
定时开关可以通过限制电器的使用时间来帮你降低电费。
The failing light switch made it difficult to turn off the lamp.
这个接触不良的电灯开关让人很难把灯关上。
The child learned how to use the on-off switch safely on his toy.
那个孩子学会了怎样安全地使用玩具上的电源开关。
Consider the on-off switch as a simple tool for decision making.
可以把这个开关当成一种简单的决策工具来考虑。
The electric technician showed us how to use a dimmer switch for mood lighting.
电工教我们怎样用调光开关来营造不同的灯光氛围。
Using a time switch saves energy by controlling when appliances run.
使用定时开关可以通过控制电器运行时间来节省能源。
The electrician tripped a switch deliberately to test the emergency shutdown.
电工是故意拉下开关来测试紧急停机装置的。
The inverting switch reversed the circuit's power flow quickly and efficiently.
这个反向开关能够迅速而高效地把电路的电流方向倒过来。
The electric light's brightness can be easily adjusted with the dimmer switch.
这盏电灯的亮度可以通过调光开关轻松调节。
Electric switch operations are crucial in managing complex electrical systems.
电开关的操作在管理复杂电气系统时至关重要。
Children should learn the importance of using an electrical switch safely.
应该让孩子从小懂得安全使用电源开关的重要性。
The ignition switch controls whether the vehicle's dashboard lights come on.
点火开关控制着车辆仪表盘指示灯是否亮起。