At the preset temperature level the bimetal element is switching.
在预设的温度水平，双金属元件进行切换。
All GIS switching equipment is placed close to ground level.
所有GIS开关设备均被安放在靠近地面的位置。
Several zero voltage and zero current switching PWM push pull three level converters are proposed.
最后，本文还提出了另外几种零电压零电流开关PWM推挽三电平直流变换器。
General purpose low level amplifier and switching transistors.
一般用途低级别的放大器和开关晶体管。
General purpose low level amplifier and switching transistors.
一般用途低级别的放大器和开关晶体管。
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