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日本機械学会熱工学部門 JSME Thermal Engineering Division …
HFOs (R1234yf,...) HFO/HFC mixture HFO/HFO mixture etc. 1830 ~ 1930s 1930 ~ 1990s 1990 ~ 20122013 ~ Whatever worked Safety Durability Environment - Ozone protection Environment - Global warming - Ozone protection Final Generation ? NH3 CO2 HCs Natural Refrigerants Synthetic Refrigerants Green Refrigerants 3.5 Generation ...
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