There are adaptations that increase the amount of forward thrust as well as those that reduce drag.
有增加前进推力的调整方法，也有减少阻力的调整方法。
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。
The configuration also provides acoustic shielding and, at low speed, increases aircraft lift without a thrust or drag penalty.
该构造还提供声屏蔽，并且在低速下，增加飞机升力的同时没有推力或阻力损失。
The results shows that the vertical and thrust forces of the wings, which balances the weight and the body drag, are mainly contributed by the drag of the wings.
结果表明：蝴蝶主要用“阻力原理”作拍动飞行，即平衡身体重量的举力和克服身体阻力的推力均主要由翅膀的阻力提供。
If thrust and drag do not equal each other, the airplane can not fly at a constant speed.
如果推力和阻力彼此不相等，飞机就不同能等速飞行。
Each time the swimmer's feet leave and enter the water, air comes along, increasing drag and reducing thrust.
无论什么时候，只要游泳者的脚从水面之上打入水中，空气就会随着脚进入水中，这些空气泡会产生阻力，而且还会减少推动力。
These tools permitted the minimization of interference drag and also facilitated the design of the engine nacelle and thrust reverser.
这些先进工具的使用，使得干扰阻力被降至最低，改善了发动机吊舱和反推装置的设计。
The thrust force is mainly due to the drag of the wings in the upstroke.
平衡身体阻力的推力主要由翅膀上拍中产生的阻力提供。
The structural style found in the basin includes imbricated thrust zone, trapdoor structure, drag fold, listric fault, rollover anticline, horst-graben structure and the like.
盆地中发育多种构造样式，主要有：叠瓦状冲断层、滚板构造、牵引褶皱、铲形正断层、滚动背斜、“垒一堑”构造等。
Along came the Vikings, with their action-man words like 'drag', 'ransack', 'thrust' and 'die', and a love of pickled herring.
同时到来的还有北欧海盗说着的话，比如拖，彻底搜索，刺，死亡，喜欢腌制鲱鱼。
Along came the Vikings, with their action-man words like 'drag', 'ransack', 'thrust' and 'die', and a love of pickled herring.
同时到来的还有北欧海盗说着的话，比如拖，彻底搜索，刺，死亡，喜欢腌制鲱鱼。
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