double flat foot spin双脚平刃旋转
flat outside spin倒飞平螺旋
flat inside spin内平螺旋
flat foot spin单脚平转;单脚平刃旋转
flat-spin entry进入平螺旋
a flat spin水平盘旋
flat-foot spin平刃旋转
flat spin recovery改出平螺旋;平旋恢复
flat sphere pair spin扁平自旋
N(名词) an aircraft spin in which the longitudinal axis is more nearly horizontal than vertical (飞机)水平螺旋