Drag is the force of air resistance pushing against a ball's motion and slowing it down, while lift is a force causing a ball to swerve off a straight path.
拉力是一种物体在空气中所受到的阻力，它能产生与球运行方向相反的作用力，减缓球的运行速度，而升力则是一种能使物体偏离直线运行轨迹的力。
The gas was slowed by a drag force similar to air resistance.
由于类似空气阻力的牵引作用，这些气体的（运行）速度减缓。
In aerodynamic terms, lift is a function of weight, thrust and drag (air resistance).
在空气动力学上，升力是重量，推力和阻力(空气阻力)的相关的函数。
When the shape of a wing creates more lift from the air passing around it than it does drag (air resistance), an aircraft will fly.
当鱼鳍的形状通过流动的空气产生比其(空气)阻力更多的升力时，飞行物便能飞翔。
In physics, drag refers to the resistance experienced by an object moving through a fluid medium (such as air).
从物理学的角度看，drag指物体在穿过某种流体媒介(如空气)时遭到的阻力，而zero drag则是描述物体不受任何阻力的理想形状。
In physics, drag refers to the resistance experienced by an object moving through a fluid medium (such as air).
从物理学的角度看，drag指物体在穿过某种流体媒介(如空气)时遭到的阻力，而zero drag则是描述物体不受任何阻力的理想形状。
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