噜噜噜噜狠狠狠7777视频_日韩免费福利视频_久久久久久久久久久久久久av_免费av在线网站_久久黄色_不卡视频一区

1. Eutectic temperature (Te)When a solution reaches a certain temperature or temperature range, its liquid state and the components in the formed solid state are completely the same. At this time, the

The basic principle of freeze-drying is based on the three state changes of water. Water can exist in solid, liquid, and gas states, which can both be converted and coexist with each other. When water

The Shanghai Yetuo in-situ freeze-drying machine is used in fields such as medicine, pharmaceuticals, biological research, chemical engineering, and food. Items that have undergone freeze-drying treat

Vacuum freeze-drying needs to be carried out in a certain device, which is called a vacuum freeze-drying machine or a pilot freeze-drying machine, abbreviated as a freeze-drying machine.The Shanghai Y

The Shanghai Yetuo freeze-drying machine is suitable for materials that are sensitive to heat and prone to thermal deformation and denaturation. In the field of biology, there are drugs, vaccines, ser

The utility model has the advantages of safe and convenient use, novel and beautiful shape, mirror stainless steel studio, electric heating constant temperature blast drying oven, and an electric fan