traffic service meaning in Chinese

交通勤务
交通运输服务

Code for engineering technology of vessel traffic services
船舶交通管理系统工程技术规范
The developing trend of vessel traffic services
船舶通航服务的发展趋势
Metps : exchanging information with air traffic services units
气象数据处理系统：与其他航空服务单位联系
Need airport traffic service
是否需要接送机服务？
Voluntary vessel traffic service
自愿船舶交通服务

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