The hazards of high temperature smog on the helicopter were discussed, and the fireproofing strategy during flight were pro-posed for helicopters in the fire scene environment.

在此基础上论述了高温烟火对直升机的危害，提出了直升机在火场环境中的飞行防护对策。

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Vibration of fixed air refueling receptacles that can occur in flight causes serious hazards to the safety of flight.

飞机采用固定式空中受油装置后，可能引起飞机飞行过程中的振动，严重时危及飞机的飞行安全。

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Some safety yardsticks have not improved in many years, while recent accidents and incidents have exposed areas that still need work: safety on the ground at airports, the training of pilots to handle sophisticated computers, and greater awareness of flight hazards in some developing countries.

WSJ: Airlines Count Down to Safest Year on Record

The board voted to send a Safety Alert to pilots warning them about the hazards of texting during the planning and pre-flight stages.

CNN: Pilot texting a factor in deadly copter crash