The draw-out-time is one of the most important ballistic parameters of the low-drag parachute bomb.
减速伞拉直时间是描述低空低阻伞弹道特重要要参量。
2
A next-generation combat drone, for example, might loiter for hours above a potential target on elongated, low-drag wings.
举例来说,新一代无人战斗机就可运用外张的低阻力机翼,在预定目标上空盘旋数小时。
3
High-speed aircraft usually employ thin, low-drag, low-lift airfoils; slow aircraft that carry heavy loads use thicker airfoils with high drag and high lift.