This paper explores how to promote vessel traffic efficiency on condition that the security of vessel traffic is insured and puts forward fluid model for vessel traffic flow.

对船舶交通在确保安全的前提下如何提高交通效率进行了探讨，得出了船舶交通流的流体模型，从一个侧面明确了船舶交通效率的量化问。

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The driver was insured, as required by the road Traffic Act 1988, for injury caused while on a "road".

司机已投保，但根据1988年公路交通法的规定，仅适用于“公路”上所发生的伤害。

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