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近年来,随着国民经济的迅速发展,科学技术的日益现代化,交通运输,旅游事业的迅猛发展,人民生活水平的不断提高,对各种空调、制冷设备提出了十分迫切的数量和质量上的要求,这类设备的技术性能指标主要取决于封闭式制冷压缩机的性能,其中最主要的又是制冷量的大小。
In recent years, with the rapid development of the national economy, the increasingly modern science and technology, the rapid development of transportation and tourism, and the continuous improvement of people’s living standard, a great number and quality of air-conditioners and refrigeration equipment have been put forward Requirements, technical performance of such equipment depends mainly on the performance of closed refrigeration compressors, of which the most important is the size of the cooling capacity.