No. 2 engine intensive vibration (severe vibration), reason unknown, we might shut down engine anytime.

第二发强烈抖动(严重抖动)，原因不明，我们随时可能关闭发动机。

youdao

The crash occurred when the crew shut down the wrong engine.

机组人员关错发动机后就坠毁了。

《柯林斯英汉双解大词典》

If an engine ingests a bird, it must be able to shut down safely without bursting into flames or exploding.

如果发动机吸入一只鸟，它必须能够安全关闭，不发生突然起火或爆炸。

youdao

Aviation analysts say the sharp volcanic particles can damage a jet engine or cause it to shut down in mid air.

VOA: standard.2010.04.15

It could eventually shut down engine and transmission factories around the world because one plant could make fuel cells for all types of vehicles.

FORBES: Magazine Article

The pilot shut down an engine and returned to the Denver airport.

CNN: US Airways, United face FAA fines for safety violations

This allows the iPod to go to sleep and shut down when you shut your car engine, without you having to think about turning anything off.

ENGADGET: The Engadget Interview: Paul Griffin, CEO/founder of Griffin Technology