| 摘要 |
An interactive chart for correlating two factors comprising top sheet having a first opening and a second opening, and a rotatable disc mounted to the top sheet, the rotatable disc having data illustrating one of the factors and information illustrating the correlated factor, wherein when a data is selected from the first opening of the top sheet, the information of the correlated factor for the selected data will be exposed from the second opening of the top sheet by rotating the rotatable disc.
|
