因为飞机一般在飞行过程中，时速都在500公里以上，波音飞机可达900公里，即使在起飞或着陆时，时速也在200多公里，这时要遇紧急情况就会造成一定的后果，如果旅客系好安全带，与飞机同步运动，可以避免惯性力对旅客的危害，各位旅客，为了确保您的旅途安全，当您乘坐飞机时，请您不要忘了系好安全带。
Why seat belt must be fastened on the airplane?
Why the flight attendants always remind the passengers to fasten the seat belt before take-off and landing. Because the airplane can fly at a speed of 500KM per hour 900KM per hour for Boeing airplane. Even at take-off or landing the speed could reach 200KM per hour. If emergency occurs it will cause some kind of impact. When passengers fasten the seat belts they can move at the same speed with the airplane to avoid injury caused by the inertia. So in order to ensure the flight safety, plead don’t forget to fasten your seat belt when you travel on airplane.
Why seat belt must be fastened on the airplane?
Why the flight attendants always remind the passengers to fasten the seat belt before take-off and landing. Because the airplane can fly at a speed of 500KM per hour 900KM per hour for Boeing airplane. Even at take-off or landing the speed could reach 200KM per hour. If emergency occurs it will cause some kind of impact. When passengers fasten the seat belts they can move at the same speed with the airplane to avoid injury caused by the inertia. So in order to ensure the flight safety, plead don’t forget to fasten your seat belt when you travel on airplane.
