附图：0501001502000100200300400500600P/mmHg压强t/s时间B图一用U型管测得的P-t曲线0501001502002.53.03.54.04.55.05.56.06.5lnP/mmHgt/s时间BLinearFitofData1_B图二用U型管测得的ln-t曲线数据分析：LinearRegressionforData1_B:Y=A+B*XParameterValueErrorA6.299710.00987B-0.01788.88025E-5------------------------------------------------------------RSDNP-0.999780.022920<0.0001-200204060801001201401601800.020.040.060.080.100.120.140.160.180.200.22P/mmHg压强t/s时间B图三热偶真空计测得的P-t曲线-20020406080100120140160180-3.5-3.0-2.5-2.0-1.5lnP/mmHgt/s时间BLinearFitofData1_B图四热偶真空计测得的lnp-t曲线数据分析：LinearRegressionforData1_B:Y=A+B*XParameterValueErrorA-1.962450.11723B-0.010970.00159------------------------------------------------------------RSDNP-0.925550.23237101.22789E-4
