有民航安全问题专家指出，飞行员短缺可能会带来飞行员飞行时间增加、以及新飞行员缺乏飞行经验等问题，进而会构成安全隐患。
Some airline safety experts say the shortage could pose risks because pilots may be made to fly more routes and new pilots do not have enough flying experience.
在此之前，法律规定允许公务员出于安全考虑，身有残疾，或者飞行时长在14小时以上的情况下购买此类机票。
Previously, the rules only allowed such travel for employees with security concerns, physical disabilities, and on flights lasting more than 14 hours.
承运人能否要求残疾人旅客在飞行时有一名安全陪同?。
May a carrier require a passenger with a disability to travel with a safety assistant?
飞行时间测距系统可以不仅应用到进入安全系 统而且可以应用到跟踪系统，例如跟踪初学走路的小孩、人和设备 的系统。
The time-of-flight ranging system may be applied to not only entry security systems but also to tracking systems such as systems for tracking toddlers, personnel and equipment.
飞机发动机出了故障，飞行员在作安全安着落滑行时，心里紧张极了。
The engine of the airplane stopped, and the pilotsweated blood as he glided to a safe landing.
航空器在此空域内飞行时，与其他航空器或障碍物之间的安全距离由航空器驾驶员负责。
Maintaining safe separation with other aircraft or obstacles is the responsibility of the pilot of the aircraft when aircraft are operating in this airspace.
航空器在此空域内飞行时，与其他航空器或障碍物之间的安全距离由航空器驾驶员负责。
Maintaining safe separation with other aircraft or obstacles is the responsibility of the pilot of the aircraft when aircraft are operating in this airspace.
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