In the condition of mechanical problem happened during the flight such as flaps loose efficiency.

在某些情况下，飞机上的部分机械系统会失效，比如襟翼。

youdao

In the condition of mechanical problem happened during the flight such as flaps loose efficiency.

在某些情况下，飞机上的部分机械系统会失效，比如襟翼。

youdao