这些泳装并不是什么万应灵药，但是它们却可以通过降低阻力提高成绩。
These suits aren't magic bullets, but they can increase performance through lower drag coefficients3.
根据相关理论，得出了可以实现均匀吸风的阶梯形风道，并且提出一些降低阻力损失的方法。
After that, we figure out a ladder-type wind tunnel to bring out uniform suction, and provide several means to reduce the pressure loss.
现代的飞机设计做得很好，但立足于燃料效率来看，飞机是否能设计得更符合空气动力学——降低阻力还是增加动力？
The modern airplane design works well, but from a fuel efficiency standpoint, could planes be designed more aerodynamically — to lower drag and increase lift?
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