These firms are regarded as the engine room of the economy.

这些公司据信对经济有重大影响力。

A very severe explosion can damage the crankcase door and cause fire in the engine room.

非常剧烈的爆炸会损坏曲轴箱防爆门，引起机仓着火。

Fire restricted to engine room.

火势仅在机舱。

Evacuate engine room and report.

命令机舱人员撤离并报告。

Go through engine room.

穿过机舱。