铁路安全预警系统是向铁路企业安全监察部门提供辅助安全管理决策服务的管理信息系统。
Railway safety pre-warning system is a management information system providing assistant decision-making service for all levels of safety inspection department in railway enterprise.
监察部门认为墨西哥的卡车安全系数与环境标准相对与美国卡车来说较低，而美国的司机们也担心他们可能面临失业的危机。
Watchdog groups argued that Mexican lorries have lower safety and environmental standards than their American counterparts. American drivers worried about their jobs.
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