It's cheaper, but it takes longer time. RkS.
坐火车更便宜一些，但是花的时间要长。
The precisions and the applicable ranges of the modified RKS, pr and PT equation are very similar to those of the original equations.
用该式改进的RKS、PR和PT方程在精度与适用范围方面均与原方程十分相近。
The method and technique of calculating thermo-physical properties of natural gas using RKS equation are mainly introduced in this paper.
介绍了采用RKS方程求解天然气热物性的求解方法和技巧。
Results showed that RKS equation is a suitable thermodynamic model for absorption-stabilization system, its simulation results are in good agreement with the data from commercial performance test.
结果表明：RKS方程是较适宜应用于吸收稳定系统的热力学模型，其模拟计算结果与工业标定数据吻合较好；
Results showed that RKS equation is a suitable thermodynamic model for absorption-stabilization system, its simulation results are in good agreement with the data from commercial performance test.
结果表明：RKS方程是较适宜应用于吸收稳定系统的热力学模型，其模拟计算结果与工业标定数据吻合较好；
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