diagram elements的用法和樣例：
例句
- The main goal of these languages is to define precise semantics of the notational elements, resulting in an expressive graphical language.
這些語言的主要目的是定義圖元的準確語義，產生一個用於表示的圖形化語言。 - This method fulfills the needs of drawing vectorization accuracy and suitable for the vectorization applications of engineering drawing with minor arcs elements.
該方法完全實現了工程圖元素的精確識別，特別適合包含少量非直線圖元的工程圖矢量化應用。
