此程序可以模拟一个液体容器在不同速度下的上下水位过程，对于初学者有很大的帮助。-This program can simulate a liquid container at different speeds the process up and down the water level, is very helpful for beginners.

用cocos2d实现液体流动效果，精选ios编程学习源码，很好的参考资料。-The liquid flow effect in cocos2d, select learning IOS programming source code, a good reference.