They are fresh water cooling system and sea water cooling system.
他们是淡水冷却系统和海水冷却系统。
The state of the fuel oil, lubricating oil, cooling fresh and sea water, and bilge system.
燃油、滑油、冷却水、海水和舱底水系统的情况。
The state of the fuel oil, lubricating oil, cooling fresh and sea water, and bilge system.
燃油、滑油、冷却水、海水和舱底水系统的情况。
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