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。
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。
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。
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