过冷水珠冻结开始时间
freezing transition time of super cooled water drop
真空冷冻干燥升华时间
The time of sublimation vacuum freeze-drying
时间-时间-时间交换网络
Time-Time-Time Switching Network TTT
超市冷冻冷藏
supermarket cold preservation
Supermarket clod
冷冻、冷藏
Cooling and refrigeration