船舶的数据库能提供多方面和可靠的基础作为研究海事活动，它能提供在不同船舶操作及船舶技术的情况下，作出空气污染物排放清单的计算。

The database has provided a versatile and reliable approach for investigating for Marine activities, which can be used to assess changes in operational practice as well as vessel technologies.

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多数船撞桥事故都是在通航环境较差或船舶突然失控情况下，由于船舶驾引人员心理紧张导致误操作造成的。

Under severe environment situation or sudden accidents, i. e. out of control, some ship-bridge collision incidents are caused by mishandling due to psychological stress of pilots.

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