The HFC (hydrofluorocarbon) refrigerant currently used in virtually every American model car and truck, HFC-134a, has a GWP of 1, 400 compared to the new refrigerant's (HFC-1234yf) GWP of just four.
事实上，目前几乎每辆美国汽车和卡车都采用了氢氯氟化碳（hydrofluorocarbon）制冷剂。 与全球变暖潜力值为1400的HFC-1234yf款相比，HFC-134a 款采用的新型制冷剂全球变暖潜力值仅有4分之差。
Hydrofluorocarbon - HFC: a substitute for chlorofluorocarbons.
氢氯烃：一种氟氯烃的替代物。
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