diurnal variation curve的用法和樣例：
例句
- Meanwhile, the variation curve of the theoretical construction cambers in the nodes of the bridge girders is compared and repeatedly corrected.
算出主梁各節點理論施工預拱度變化曲線等數據並與實測值進行比較，反覆修正。 - The system design and the collection of temperature changes in temperature curve on the LCD display.
本系統設計了溫度採集且把溫度的變化曲線在液晶上顯示出來。
