SELECT#CSYS 選取坐標系#Create 創建Create a coordinate system.創建一個坐標系。Select 選取Select coordinate systems.選取一坐標系。Remove 移除Remove a coordinate system selection.刪除坐標系選取。Show 顯示Show coordinate system selections.顯示坐標系選取。Done/Return 完成/返回Exit this menu.退出此菜單。