refrigerant oil

基本解释

Fourth step, to the host pumping a vacuum, plus the amount of refrigerant oil and refrigerant.
第四步，给主机抽真空，加适量冷冻油和冷媒。
jnslshwx.com
Main automotive air conditioning compressor, refrigerant, refrigerant oil, compressor clutch assembly, Shell Oil and so on.
主营汽车空调压缩机、雪种、雪种油、压缩机离合器总成、壳牌机油等。
company.china.alibaba.com
The energy efficiency mechanism of Polarized Refrigerant Oil Additive(PROA) is analyzed. Some disputes in study about PROA recently are discussed.
本文分析了极化冷冻机油添加剂（PROA）的节能机理，讨论了目前对极化冷冻机油添加剂研究中存在的一些争议。