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The selection tools are interactive tools that can be used dragging the mouse on the 3D View and holding its left button. A shape will appear, following the mouse, and all the information inside its borders will be selected.
选择工具是互动的工具,可以在3D视图中按住左键拖动鼠标形成一个形状,所有在其边界内的数据将被选中。