Video: 0053_pour_milk_1
Phase transition: mix
State before: liquid:non viscous
State after: liquid:non viscous
Object: In the process of pouring the milk into the coffee, all the milk which is being poured in the initial frame
目标物体: 在咖啡中拉花过程中，位于初始帧中倒入的所有的牛奶