少妇搡BBBB搡BBB搡AA,少妇被躁爽到高潮无码文,欧美精品videossex少妇,久久精品大全,国产裸体歌舞一区二区,国产精品禁 禁久久久精品,国产熟女一区二区三区五月婷 ,欧美最猛性xxxxxx

Lab freeze dryer is mainly used for research and small-scale trials, which closely link process development, optimization, scaling up, and industrial production, and has become a solution for clinical experiments.

Freeze drying is the process of pre cooling and freezing a substance rich in moisture into a solid, and then sublimating its moisture from the ice state to the vapor state under vacuum conditions for dehydration, the substance itself remains in the frozen ice shelf, so its volume remains unchanged after drying and becomes loose and porous. As freeze-drying is carried out under vacuum (with minimal oxygen) and low temperatures, some easily oxidizable substances are protected, and many heat sensitive substances such as proteins and microorganisms do not undergo denaturation or loss of biological activity.

Drying area of 100-240M2; Freeze drying is the process of pre cooling and freezing a substance rich in moisture into a solid, and then sublimating its moisture from the ice state to the vapor state under vacuum conditions for dehydration, the substance itself remains in the frozen ice shelf, so its volume remains unchanged after drying and becomes loose and porous. As freeze-drying is carried out under vacuum (with minimal oxygen) and low temperatures, some easily oxidizable substances are protected, and many heat sensitive substances such as proteins and microorganisms do not undergo denaturation or loss of biological activity.