它的使用性能直接影响着船舶航行的安全和预定航行任务的完成。
Its applied performance directly affects the safety of navigation and the completion of sailing task in scheduled date.
他们的这次航行任务是为国际号空间站(ISS)补充补给，而这将是这艘航天飞机最后一次出航。
Their mission, to resupply the International Space Station (iss), will be the shuttle's last.
海上事故的发生与航海人员在完成航行任务和处理海上风险过程中的能力有非常密切的关系。
The happening of Marine accidents has close relationship with the seamen's ability in the process of carrying out navigation tasks and dealing with Marine risks.
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