对3 - d坐标系中定义的对象最基本的操作就是变换、旋转和缩放。
The essential operations performed on objects defined in a 3-d coordinate system are translation, rotation, and scaling.
造成顺序很重要的一个原因就是，像旋转和缩放这样的变换是针对坐标系的原点进行的。
One reason order is significant is that transformations like rotation and scaling are done with respect to the origin of the coordinate system.
造成顺序很重要的一个原因就是，像旋转和缩放这样的变换是针对坐标系的原点进行的。
One reason order is significant is that transformations like rotation and scaling are done with respect to the origin of the coordinate system.
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