... 海水透明度 seawater transparency 海水系统 sea water service system 海水循环泵 sea water circulating pump ...
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While vessel is in port cooling sea water is supplied by port service cooling sea water pump, Marine growth preventing system is very difficult to use and not safety for operation, to be solved.
船舶在港时，冷却的海水由港内海水冷却泵完成，很难启用海上防污系统且操纵不安全，待解决。
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