但是他们也跟空气阻力作斗争。

But they also battle against air resistance.

如果没有空气阻力，可以达到每小时225英里。

Without the air drag, we would have reached 225 miles per hour.

由于类似空气阻力的牵引作用，这些气体的（运行）速度减缓。

The gas was slowed by a drag force similar to 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。

In aerodynamic terms, lift is a function of weight, thrust and drag (air resistance).

减低汽车行驶中的空气阻力、抑制其行驶时的气动噪声具有十分重要的意义。

It is very important to reduce the aerodynamic drag and noise for traveling vehicles.