Abstract: Disclosed are an anti-freezing agent for protecting a biological tissue from being damaged during a freezing treatment and a preparation method therefor. The method for preparing the anti-freezing agent involves mixing ethylene glycol, water and dimethylsulfoxide homogeneously to form a matrix, and then slowly adding sodium polyacrylate. The prepared anti-freezing agent is coated onto biological tissue during a freezing treatment such that damage to the biological tissue is reduced.

Abstract: Disclosed are an anti-freezing agent for protecting a biological tissue from being damaged during a freezing treatment and a preparation method therefor. The method for preparing the anti-freezing agent involves mixing ethylene glycol, water and dimethylsulfoxide homogeneously to form a matrix, and then slowly adding sodium polyacrylate. The prepared anti-freezing agent is coated onto biological tissue during a freezing treatment such that damage to the biological tissue is reduced.

Abstract: Disclosed are an anti-freezing agent for protecting a biological tissue from being damaged during a freezing treatment and a preparation method therefor. The method for preparing the anti-freezing agent involves mixing ethylene glycol, water and dimethylsulfoxide homogeneously to form a matrix, and then slowly adding sodium polyacrylate. The prepared anti-freezing agent is coated onto biological tissue during a freezing treatment such that damage to the biological tissue is reduced.

Abstract: Disclosed are an anti-freezing agent for protecting a biological tissue from being damaged during a freezing treatment and a preparation method therefor. The method for preparing the anti-freezing agent involves mixing ethylene glycol, water and dimethylsulfoxide homogeneously to form a matrix, and then slowly adding sodium polyacrylate. The prepared anti-freezing agent is coated onto biological tissue during a freezing treatment such that damage to the biological tissue is reduced.

Abstract: A deodorizer control device for spraying system includes a central processing unit. A central processing unit is defined with at least one operation mode. A liquid crystal display panel is connected to the central processing unit for selecting an operation mode from the at least one operation mode and displaying a working state of the selected operation mode. The liquid crystal display panel has functions of displaying time period of operation, date, time, dose used, external power source, and insufficiency of the date, time, dose, power; a spraying can is operated under the selected operation mode so as to control the spraying amount with a predetermined value.