Port state control regulated by the country, in which the port is located, on the basis of relevant international treaty is a system to supervise and control vessel of Alien nationality.

港口国监控是港口所在国家根据有关国际公约规定的标准，对进入其港口的外国籍船舶所实施的一种监督与控制制度。

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Such a configuration allows the ports to operate at different speeds that may be set on a port-by-port basis.

这种配置允许 各端口以可在逐端口的基础上设置的不同速度工作。

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