mode change的用法和樣例：
例句
- Properties of mode conversion in a nonlinear conical graded-index medium are investigated.
研究非線性錐型梯度折射率媒質中的模式變換特性。 - But some of these new products and processes change dramatically and therefore it is important to exploit tactics and doctrine at the same time.
然而某些新的產品和管理方式變化很快，因此在這同時發展新的技術和作戰理論就很重要。
