Glide - A ratio that describe how far the wing will travel for every unit altitude that is lost.L/D (Lift/Drag) is a pure number that is one of the characteristics of a wing.

• 滑降比描述飞行伞滑降时所减少的单位高度内所能够飞行距离的一个比率值(升力/阻力)，这是在没有外力影响情况的数据为飞行伞一个特性。