temperature coefficient of resistivity 电阻率温度系数
resistivity of positive temperature coefficient 正温度系数电阻ptcr
Thereby a semiconductive material has been developed with positive temperature coefficient of resistivity and with higher operating temperature for cables.
借此制成一种电阻的温度系数为正、工作温度较高的半导电电缆料。
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.
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 future key to solve this problem in making excellent starting component will be further elevating average temperature coefficient of material resistivity in whole PTC region.
今后研制高性能启动元件所要解决的关键问题是进一步提高材料在整个PT C区域内的平均温度系数。
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