简要介绍了自限温型PTC（正温度系数）电热带的结构、工作原理及性能特点；
The construction, work principle and characteristics of the temperature limited PTC(positive temperature coefficient) heating cable are briefly presented.
简要介绍了自限温型PTC（正温度系数）电热带的结构、工作原理及性能特点；
The construction, work principle and characteristics of the temperature limited PTC(positive temperature coefficient) heating cable are briefly presented.
应用推荐