因为没有液压装置，所以不能肯定起落架能不能固定得住。乘务人员将帮助你们作好着陆时防冲击的准备。
Because of the lack of hydraulics, we are not sure our landing gear will lock, so the flight attendants will prepare you for a bumpy landing.
计算结果表明，列车防碰撞装置能够较好地减缓冲击，降低碰撞作用力。
The calculation results show that the bump prevention device on train can damp the impact and reduce the bump action force effectively.
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