main engine room alarm ringer system
主机舱警铃系统
Of course, especially the main engine room control, cargo handling, and electronic systems.
是得。特别是机舱控制，货物吊运和电子设备。
No signs of fire outbreak in the engine room or damage to the main and ancillary machinery were observed.
未发现曾有火灾的迹象，主机和辅机也没有受到破坏的迹象。
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