graphic expression的用法和樣例：
例句
- The graphic presentations related to Correlation, Covariance, and Filtering of Signal Waveform and Spectrum.
訊號波形及頻譜之濾波與關聯及關聯變異，其相關圖示之意義。 - The exact expression is obtained by integration method for a tightly wound rectangular solenoid of finite length, the result is plotted and discussed.
通過直接積分得到了有限長密繞矩形螺線管自感係數的精確表達式，並對結果進行了圖示和討論。
