Set root object for scene hierarchy. Root object coordinate system becomes scene global coordinate system.
为阶层式场景设置根对象，根对象的坐标系会成为场景全局坐标系。
Using computer vision theory, image coordinate system and camera coordinate system are set up.
应用计算机视觉理论建立了图像坐标系和摄像坐标系；
The system mainly consists of three parts: coordinate-measuring device, date processing computer and system software.
系统主要由坐标测量装置、处理计算机及相应的系统软件等部分组成。
The system mainly consists of three parts: coordinate-measuring device, date processing computer and system software.
系统主要由坐标测量装置、处理计算机及相应的系统软件等部分组成。
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