...>>3.1>>自限温电热带self-regulatingheatingcable>>具有电阻率正温度系数(PositiveTperatureCoefficient,PTC)电阻率特征的导电聚合物复合材料制成的带状电加热器件。
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实验指出，其电阻率随温度的变化呈不同强度的正温度系数（PTC）效应。
The results of experiment show that the resistivity of the composites changes along with the temperature in a behavior of positiver temperature coefficient (PTC) effect.
PTC材料 （正温度系数热敏材料 ）具有电阻率随温度升高而增大的特性 ，是一种应用广泛的电子材料。
PTC material, which has the property of positive temperature coefficient, is a kind of widely used electronic material.
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