first approximation的用法和樣例：
例句
- It's derivation involved no approximation.
它的推導過程不含近似處理。 - The jellium model in a certain approximation leads to the equation.
凝膠模型在某種近似下導致下列方程。 - The final figure is only an approximation.
最後的數字只是一個近似值。 - In this class, we investigate the connection between networks for learning and the approximation scheme described so far.
在這堂課里，我們要認識到目前為止有關學習網路和近似值理論兩者前後關係的研究。
