水分吸显等温线 Moisture sorption isotherms Definition: polts interrelating water content of a food with its water activity at constant temperature 食品化类气分析 Food chemistry and analysis水分吸湿等温线 Moisture Sorption Isotherms Definition:polts interrelating water content of a food with its water activity at constant temperature . 食品化学与分析 Food chemistry and analysis