sweep forward的用法和樣例：
例句
- This paper presents the design and experiment of a high performance three-stage axial fan with forward swept blades.
本文介紹了一臺高性能前掠葉型三級軸流風扇的設計與試驗研究。 - The blade both with positively curving and forward sweeping further strengthens this kind of effect, providing a freedom to the blade design.
正彎與前掠的結合進一步加強了這種控制作用，為葉片設計提供了一個自由度。
