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本文对以往广泛用于计算天然气偏差系数的八种方法进行了比较系统地介绍。经过分析,提出了每种方法造成的计算误差以及原因所在。经过对各种方法进行比较,提出了拟对比压力和拟对比温度的推荐范围。
This article systematically introduces the eight methods widely used to calculate the deviation coefficient of natural gas in the past. After analysis, the calculation error caused by each method and the reason are put forward. After comparing the various methods, proposed the proposed comparison of pressure and temperature range of the proposed comparison.