经典游戏俄罗斯方块，能够设定级别、速度、层数，能够记录最高的几个记录-classic game Tetris, to set levels, speed, number of storeys, to record the highest number of records

QT 俄罗斯方块 有新功能的话，可以继续添加-QT Tetris new feature, you can continue to add

俄罗斯方块游戏，有单击版有网络版，还有聊天功能-Tetris

This tool is a simplification of the ballpivoting algorithm. It imagines a bella eating a delaunay traignulation in order to extract a manifold surface. It requires a single parameter: radius of the fretting ball.