PAS added to PE can make the composites has the property of effect of PTC, but the intensity of PTC of composites varies with the concentration of PAS.
聚并苯添加到聚乙烯中可以得到PTC效应，不同聚并苯浓度的复合物得到的PTC强度并不相同。
These theoretical results are consistent with the experimental results. They may provide a theoretical basis for designing and measuring the voltage effect of PTC ceramics.
这些结果与已有实验结果相符，它们为PT C陶瓷电压效应的设计与测量提供了理论基础。
This paper briefs the working principle of the PTC starter used in refrigeration compressors and analys the factors of effect of the constructual elements on the devices.
简述了制冷压缩机用PTC起动器的工作原理，对PTC起动器中结构元件对起动器的影响因素作了初步分析。
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