The problem of traveler route choice has always been a hot issue in the field of transportation research.

出行者路径选择问题一直是交通领域研究的热点。

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Crew scheduling is always an important problem in the field of transportation, railway airways urban transportation departments have been searching for the reasonable methods of crew scheduling.

乘务计划编制在交通运输领域始终是一个重要问题，铁路、航空、城市交通部门不断寻找合理的乘务计划编制方法。

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The paper introduces shuttle passive control systems in the field of airtight pipeline transportation.

介绍了密闭输送管道的梭式非能动控制调节系统。

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We will continue to work together to counter financial support for terrorism, disrupt the possible connections between terrorist networks and criminal groups, prevent the spread of violent extremism, and improve transportation security, including by concluding bilateral agreements in this field.

WHITEHOUSE: The White House