air brake
air brake
air brake
n.（名词）
1.A brake, especially on a motor vehicle, that is operated by compressed air.
气闸：一种闸，尤其是用压缩空气来启动的机动车上的闸
2.A surface, such as an aileron, that can be projected into the airstream in order to decrease the air speed of an airplane by increasing drag; a spoiler.
减速板：飞机上的一个诸如副翼的平面，可以投射到气流中通过增加拖力来减小飞机的速度；扰流器
