switch off

Hein's installation is a wall of neon lights that switch off as the viewer approaches.

这是一个由霓虹灯组成的墙，当观众靠近它时它便会关上。

In a10kV distribution system,when shunt ca-pacitors are switched off by vacuum circuit breakers,restrike overvoltage often occurs.

电力系统中使用真空断路器切无功补偿用并电容器时,容易产生燃过电压,严影响并电容的安全运行。

This paper describes the mechanism that multiple reignition of breaker can restrain or increase progressively the switching-overvoltage during switching off inductive or capacitive load.

论述了开关在开断感性或容性负载时燃对过电压的抑制或递升机理。