操作說明
Instructions

按下滑鼠"左鍵不放"旋轉視角
Press and hold the left mouse button to rotate the view.

按下滑鼠"右鍵不放"平移視角
Press and hold the right mouse button to pan the view.

使用滑鼠"滾輪"控制遠近
Use the mouse wheel to control zooming.

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