本文定义了实物坐标系与显示坐标系 。

This coordinate system is called the triad at the point.

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实物坐标系经过一系列变换通过三维显示的二维投影面与显示坐标系统一。

World coordinate that had undergone some transform such as translation, and rotation was unified with display coordinate through 2D projection plane of 3D display coordinate.

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不过，您需要为位于其父组件局部坐标系中的组件显示工具提示。

However, you need to show the tooltip for a component that lies in the local-coordinate system of its parent.

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