Engine blade fracture also happened to be temporary flight accident.
此外还发生过发动机叶片断裂而无法临时起飞的事故。
2
In particular, expressions of flapping coefficients are derived, including the effect of variable induced velocity distribution but in terms of blade parameters and flight parameters only.
特别是在挥舞系数的表达式中，考虑了诱导速度的变化，但直接与桨叶参数和飞行参数有联系。
3
The helicopter rotor blade deicing technique is greatly important to ensure the flight safe - ty.