natural refrigerant

基本解釋

For long term consideration, natural refrigerant is the most satisfied substitutes.
從長遠角度考慮，自然工質替代人工工質已經成爲必然。
The thesis studied the situation of performance matching for natural refrigerant propane (R290) instead of R22 in minitype room air conditioners.
本文研究了自然工質丙烷（R290）替代R22在小型家用空調的性能匹配情況。
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.
在汽車空調中，具有對環(huán)境友好性和優(yōu)良的熱物理特性的天然工質CO2與其他制冷劑相比有獨特優(yōu)勢。

自然工質
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.
採用自然工質CO2的跨臨界循環(huán)技術具有廣濶的應用前景,而提高CO2跨臨界制冷循環(huán)系統(tǒng)性能是推廣此技術應用的關鍵。
自然制冷劑