The study take Yancheng City as an example, and then based on the case study of Yancheng City economic development zone to analyze the urban land market operation mechanism.
本研究在以盐城市为例对城市土地市场运行机制进行了分析之后，并以盐城市经济开发区为例对城市土地市场运行机制作了案例分析。
Pollutants emission effects have been especially considered in the study on steam power system economic operation, and accordingly, mathematic models are recommended for pollutants emission.
在蒸汽动力系统运行的研究中引入了污染物排放问题，并建立了各污染物的数学模型。
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