air drag

简明释义

空气阻力

英英释义

例句

1.During free fall, a skydiver experiences increased air drag (空气阻力) as they reach terminal velocity.

在自由落体期间，跳伞者在达到终端速度时会经历增加的空气阻力（空气阻力）。

2.An airplane's wings are designed to create lift while minimizing air drag (空气阻力).

飞机的机翼设计旨在产生升力，同时最小化空气阻力（空气阻力）。

3.Cyclists often wear tight-fitting clothing to minimize air drag (空气阻力) while racing.

骑自行车的人通常穿着紧身衣以最小化空气阻力（空气阻力）在比赛时。

4.The design of the car was optimized to reduce air drag (空气阻力) and improve fuel efficiency.

这款车的设计经过优化，以减少空气阻力（空气阻力）并提高燃油效率。

5.Engineers use wind tunnels to test how different shapes affect air drag (空气阻力).

工程师使用风洞测试不同形状如何影响空气阻力（空气阻力）。

作文

Understanding the concept of air drag is essential for anyone interested in physics, engineering, or even sports. Air drag refers to the resistance experienced by an object moving through the air. This force opposes the motion of the object and can significantly affect its speed and performance. The study of air drag is crucial in various fields, including aerodynamics, automotive design, and even in the development of athletic gear. To illustrate the importance of air drag, let's consider the example of a cyclist racing against the clock. As the cyclist speeds down the road, they encounter air drag that slows them down. The faster they go, the more pronounced this resistance becomes. To combat air drag, cyclists often adopt streamlined positions, reducing their frontal area and minimizing the impact of this force. This adjustment allows them to maintain higher speeds and improve their overall performance. In aviation, understanding air drag is vital for designing efficient aircraft. Engineers must calculate the air drag on an airplane to ensure that it can achieve optimal flight conditions. The shape of the aircraft, the materials used, and the speed at which it travels all influence the amount of air drag encountered. For instance, a sleek, aerodynamic design will experience less air drag than a boxy, irregular shape. Moreover, air drag is not just a concern for high-speed vehicles; it also affects everyday objects. Consider a car driving down the highway. The design of the vehicle plays a significant role in how much air drag it experiences. Cars with rounded edges and smooth surfaces tend to have lower air drag, which translates to better fuel efficiency. In contrast, vehicles with sharp angles and protruding features face greater resistance, leading to increased fuel consumption. In the realm of sports, athletes are constantly seeking ways to reduce air drag to enhance their performance. Swimmers, for example, wear specially designed swimsuits that minimize air drag in the water. Similarly, runners may choose tight-fitting clothing to lessen air drag as they sprint towards the finish line. Every second counts in competitive sports, and understanding how to mitigate air drag can make a significant difference in results. In conclusion, air drag is a fundamental concept that affects a wide range of activities, from cycling and aviation to automotive design and sports performance. By understanding the principles behind air drag, individuals can make informed decisions to enhance efficiency and performance in their respective fields. Whether you are an engineer designing the next generation of aircraft or an athlete striving for personal bests, recognizing the impact of air drag can lead to significant improvements and innovations. Embracing this knowledge not only enhances our understanding of physical forces but also empowers us to apply these principles in practical ways.

理解空气阻力的概念对于任何对物理、工程甚至体育感兴趣的人来说都是至关重要的。空气阻力是指物体在空气中运动时所遭遇的阻力。这种力与物体的运动方向相反，可能会显著影响其速度和性能。研究空气阻力在多个领域中都是至关重要的，包括空气动力学、汽车设计，甚至运动装备的开发。为了说明空气阻力的重要性，让我们考虑一个骑自行车的人在比赛中与时间赛跑的例子。当骑自行车的人在路上加速时，他们会遇到空气阻力，这会减缓他们的速度。骑得越快，这种阻力就越明显。为了抵消空气阻力，骑自行车的人通常会采取流线型姿势，降低他们的前表面积，从而最小化这种力量的影响。这种调整使他们能够保持更高的速度，提高整体表现。在航空领域，理解空气阻力对于设计高效的飞机至关重要。工程师必须计算飞机上的空气阻力，以确保它能够达到最佳飞行条件。飞机的形状、使用的材料以及飞行速度都会影响遇到的空气阻力的数量。例如，流线型的空气动力学设计将比方形或不规则的形状经历更少的空气阻力。此外，空气阻力不仅仅是高速车辆的关注点，它也影响日常物体。考虑一下在高速公路上行驶的汽车。车辆的设计在其遭遇的空气阻力方面起着重要作用。边缘圆滑、表面光滑的汽车往往具有较低的空气阻力，这转化为更好的燃油效率。相比之下，带有锐角和突出特征的车辆则面临更大的阻力，导致燃料消耗增加。在体育领域，运动员们不断寻求减少空气阻力的方法，以提升他们的表现。例如，游泳运动员穿着专门设计的泳衣，以最小化水中的空气阻力。同样，跑步者可能会选择紧身衣服，以减少他们在冲向终点线时的空气阻力。在竞技体育中，每一秒都至关重要，理解如何减轻空气阻力可以对结果产生重大影响。总之，空气阻力是一个基本概念，影响着广泛的活动，从骑自行车和航空到汽车设计和体育表现。通过理解空气阻力背后的原理，个人可以做出明智的决策，以提高各自领域的效率和表现。无论你是设计下一代飞机的工程师，还是努力追求个人最佳成绩的运动员，认识到空气阻力的影响都可以带来显著的改善和创新。拥抱这一知识不仅增强了我们对物理力量的理解，还使我们能够以实际方式应用这些原理。