使用范围通常在 --50℃～150℃ B．临界温度系数（Critical TemperatureResistor，CTR）热敏电阻： 它存在一个临界温度，超过这个临界温度，其阻值急剧变化。其主要用途是 用作温度开关元件。
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临界温度系数热敏电阻 Critical Temperature Resistor ; CTR
测得材料的基准温度电阻，电阻温度系数及能够确定传感器工作范围的临界温度。
The resistance at reference temperature, its temperature coefficient, and the critical temperature of the material that the operating range of the sensor depended on have been obtained.
对可能发生热失控现象的物质进行提取时，萃取温度应选择在临界温度附近，此时扩散系数较大。
In the extraction of components with the phenomena of thermal runaway, choosing the critical temperature can lead to a greater diffusion coefficient.
只有热源温度高于临界温度值时，GAX循环性能系数才能得到提高。
Only when heat reservoir temperature is higher than critical heat reservoir temperature can the performance of GAX cycle be improved.
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