PPTC的动作原理PPTC线路保护设备的动作媒介是由半晶质的化合物和电导介质组成。
PPTC Principle of Operation PPTC circuit-protection devices are formed from a composite of semicrystalline polymer and conductive particles.
PPTC的动作原理PPTC线路保护设备的动作媒介是由半晶质的化合物和电导介质组成。
PPTC Principle of Operation PPTC circuit-protection devices are formed from a composite of semicrystalline polymer and conductive particles.
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