[問卦] 為何高鐵的電弓架 高速行駛的摩擦不會燒消失
高鐵車體接觸高壓電線的電弓架
為何在高速行駛下的摩擦不會產生高溫燃燒?
而且這樣一直摩擦 感覺比鐵軌更耗材
電弓架與電線摩擦不會燃燒
是因為特製高壓電線的鋼材燃點高嗎?
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