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以下世纪氨系统新方案为主线，实例揉讨新型氨制冷系统最新类型的研究开发动向，阐明氨系统螺杆式压缩机及氨制冷机的特点和发展方向。
In the following century, the new ammonia system program as the main line, an example of the latest type of ammonia refrigeration system research and development trends to clarify ammonia system screw compressor and ammonia refrigerator characteristics and development direction.