Hein's installation is a wall of neon lights that switch off as the viewer approaches.
这是一个由霓虹墙,当观众靠近它时它便会关上。
Hein's installation is a wall of neon lights that switch off as the viewer approaches.
这是一个由霓虹墙,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联电器时,易产生重燃过电压,严重影响并联电全运行。
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性负载时多次重燃对过电压抑制或递升机理。
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