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针对制冷剂现状着重从氨的热力学性能、物理性质、环保及毒性等方面分析了扩大氨制冷剂在新时期应用的可行性
According to the status quo of refrigerant, the feasibility of expanding the application of ammonia refrigerant in the new period is analyzed from the thermodynamic properties, physical properties, environmental protection and toxicity of ammonia