Ensure bridge, engine room, forecastle, steering room to communicate smoothly in emergency.

保证驾驶台和机舱、船首、舵机室在应急情况下通信联系畅通。

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Ensure bridge, engine room, forecastle, steering room to communicate smoothly in emergency.

保证驾驶台和机舱、船首、舵机室在应急情况下通信联系畅通。

youdao