| 释义 |
critical anglen.（名词）- Physics The smallest angle of incidence at which a light ray passing from one medium to another less refractive medium can be totally reflected from the boundary between the two.【物理学】 临界角：光线从一种媒质进入另一种折射率较小的媒质时，在两种媒质的界面发生全反射时的最小入射角
- The angle of attack of an airfoil at which airflow abruptly changes, causing changes in the lift and drag of an aircraft.临界迎角：气流发生突然变化致使飞机的升力和阻力发生变化时的机翼的迎角
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