PTC发热和灯管发热的区别如题

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PTC发热和灯管发热的区别如题PTC发热和灯管发热的区别如题PTC发热和灯管发热的区别如题PTC是陶瓷发热芯,灯泡是钨丝通电后发热发光,灯管是灯丝加热后激发水银分子发光发热

PTC发热和灯管发热的区别如题
PTC发热和灯管发热的区别如题

PTC发热和灯管发热的区别如题
PTC是陶瓷发热芯,灯泡是钨丝通电后发热发光,灯管是灯丝加热后激发水银分子发光发热