natural refrigerant

基本解释

For long term consideration, natural refrigerant is the most satisfied substitutes.
从长远角度考虑，自然工质替代人工工质已经成为必然。
The thesis studied the situation of performance matching for natural refrigerant propane (R290) instead of R22 in minitype room air conditioners.
本文研究了自然工质丙烷（R290）替代R22在小型家用空调的性能匹配情况。
Through comparing CO2 with other refrigerants, the advantages of CO2 as a natural refrigerant are due to its environmental benign and good thermal properties in the automobile air-condition system.
在汽车空调中，具有对环境友好性和优良的热物理特性的天然工质CO2与其他制冷剂相比有独特优势。

自然工质
The natural refrigerant CO2 transcritical cycle technology has a broad application foreground. Improvement of cycle system performance is the key for the CO2 transcritical cycle technology popularization.
采用自然工质CO2的跨临界循环技术具有广阔的应用前景,而提高CO2跨临界制冷循环系统性能是推广此技术应用的关键。
自然制冷剂