flow field model的用法和樣例：
例句
- In addition, the Grads Field Price Effect Model put forward by Zen Fanyin is modified.
此外，對曾凡銀提出的綠色壁壘價格梯度場模型進行了修正，通過對修正模型的分析，驗證了綠色壁壘在價格上對關稅壁壘的替代效應。 - In the light of the inwall depression in the process of tubular intermediate upseting, a parallel velocity field model with depression is established.
針對管坯中部鍛鍛變形過程中產生的內壁凹陷現象，建立了含凹陷的平行速度場模型。
