Lastly, create winglets by folding down the top quarter-inch of the wingtips.

最后，通过折叠翅膀顶端的四分之一英寸来创建小翼。

This rule also applies to anything aerodynamic, like winglets or the new 777X folding wings.

这条规空气动力学的东西，比如小翼或新的 777X 折叠机翼。

New wing technology was implemented, such as winglets, which made planes more aerodynamic and reduced flight times.

实施了新的机翼技术， 例如小翼，这使飞机更符合空气动力学并缩短了飞行时间。