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针对冰点器测量标准铂电阻温度计电阻值Rtp存在的问题 ,采用水的三相点作为参考点进行测量 ,其温度稳定性好 ,准确度高 ,并阐述了水三相点瓶的冻制及Rtp 值的测定过程
According to the problem of the resistance value Rtp of the standard platinum resistance thermometer measured by a freezing point apparatus, the three-phase point of water is taken as a reference point for measurement, the temperature stability is good and the accuracy is high. The three-phase water bottle freezing and Rtp The value of the determination process