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?? 4??? ??? ???? ??? ??? ??.

?? ???? ??? ???? ??? ??? ??? ????: ?? ? ?? ??, ??.

American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), ??? ???

• ASHRAE EQUIP IP CH 32-2008 ???

Hunan Provincial Standard of the People's Republic of China, ??? ???

• DB43/T 2061-2021 ????? ???? ?????? ????

Professional Standard - Coal, ??? ???

• MT/T 620-1996 ?? ??? ??? ?? ??? ?? ??
• MT/T 620-2008 ?? ??? ??? ?? ??? ?? ??

??:   ???, ?? ???, ??? ??, ?? + ???, ??? ??, ?? ???, ??? ??, ?? ???, ??? ???, ??? ???, ?? ????, ??? ??, ??? ??, ???? ???, ?? ??, MTT ??, ???? ???, PCR ??.