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。
The more powerful front engine already had been shut down earlier to save fuel.
功率更强大的前引擎已经在早先被关闭，以节省燃料。
An emergency shut-down system enables the engine to be stopped in an emergency.
应急停车系统能使机器在紧急情况下迅速停止工作。
An emergency shut-down system enables the engine to be stopped in an emergency.
应急停车系统能使机器在紧急情况下迅速停止工作。
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