【摘要】 在锅炉效率试验中需要查较多的物性参数表的数据，常用的直线内插祛，使用在较小的范围内最适用的，但使用在间隔较大的曲线分布的数据表上精确度不高，而且比较麻烦，不慎还会出错，为此作者根据数据实际变化规律推导高精度的拟合式。更多还原

【Abstract】 In boiler efficiency test, many data need be found from physical parametertables. Linear insertion method in common use is applicable within small range, but suffersfrom poor accuracy when used in bata tables with large interval curve profile. Besides, theapplication is inconvenient and easy to cause mistakes. Therefore, the author derivedhighaccuracy fitting method from the actual varying regularity of data.更多还原