几何光学游戏，挑战智力极限，休闲小游戏，有一定难度哦。-Geometrical optics games, challenging mental limits, casual games, there is a certain difficulty oh.

几何光学游戏 一款挑战你智商极限的游戏 5关几个 10关入门 15关，您已经是天才啦，但是一共20关哦！-Geometrical optics limit of the game a game to challenge your IQ number 5 off 15 off 10 off entry, you have a genius about it, but a total of 20 off Oh!

这是介绍有形的光学象棋，有形版本的光学象棋，战略游戏 实施交互式的桌面显示方面的书籍 还有有关用户输入设备接口技术方面的如（鼠标，触摸屏）-This is the introduction to tangible optical chess, tangible version of the optical chess, strategy games, the implementation of interactive desktop display of books on technical