Airliners have an angle of attack sensor.

飞机有攻角传感器。

If the angle gets too big, if it exceeds a critical angle of attack a plane stalls.

如果角度变得太大，如果超过一个临界攻角，飞机就会失速。

One of the sensors, called Angle of Attack, did not work correctly in the Lion Air crash, which turned that plane's MCAS system on again.

在狮航坠机事件中，其中一个名为" 攻角" (Angle of Attack)的传感器失灵，导飞机的自动防失速系统再次启动。

You can see the kind of little bone that sticks out the front called the pteroid and that is used to move that front bit of wing up and down, which helps like the angle of attack.

你可以看到前面伸出来的一种小骨头叫做翼骨，它用来上下移动翅膀前面的部分，这有助攻角。

We use laser projection methods to understand how to create wings and the attack angles and the number of wings and the geometries and the weight distributions to fully optimise the way that these structures are flying.

约翰：我们使用激光投影方法来了解如何创建机翼和攻角以及机翼的数量和几何状以及重量分布，以充分优化这些结构的飞行方式。

Consulting with Boeing's guru of wing design, W. T. Hamilton, Sutter realized that to  correct this problem would have meant a complete redesign of the wing, decreasing  the angle of attack on the outside edge.

在咨询波音机翼设计大师 W. T. Hamilton 后，Sutter 意识到要解决这个问题就意味着要彻底重新设计机翼， 减少外缘的攻角。