frigorific mixture

例句：

1. 1. The frigorific mixture is used to cool down the room quickly.
   这种制冷混合物用于迅速冷却房间。
2. 2.The refrigerant mixture in the refrigerator keeps the food fresh for a long time.
   冰箱里的制冷剂混合物使食物保持新鲜很长时间。
3. 3.The engineer mixed the frigorific mixture carefully to ensure the proper functioning of the system.
   工程师仔细混合制冷混合物，以确保系统的正常运行。