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PTCÊÇPositive Temperature Coefficient µÄËõд,Òâ˼ÊÇÕýµÄζÈϵÊý,·ºÖ¸ÕýζÈϵÊýºÜ´óµÄ°ëµ¼Ìå²ÄÁÏ»òÔªÆ÷¼þ.ͨ³£ÎÒÃÇÌáµ½µÄPTCÊÇÖ¸ÕýζÈϵÊýÈÈÃôµç×è,¼ò³ÆPTCÈÈÃôµç×è. 
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