air resistance

简明释义

空气阻力

英英释义

例句

1.In aerodynamics, understanding air resistance 空气阻力 is crucial for designing efficient aircraft.

在空气动力学中，理解空气阻力对设计高效飞机至关重要。

2.When a skydiver jumps from an airplane, they experience a significant amount of air resistance 空气阻力 as they fall.

当跳伞者从飞机上跳下时，他们在下降过程中会经历大量的空气阻力。

3.Athletes train to reduce air resistance 空气阻力 when they sprint or cycle.

运动员训练以减少短跑或骑行时的空气阻力。

4.The design of cars often takes air resistance 空气阻力 into account to improve fuel efficiency.

汽车的设计通常考虑到空气阻力以提高燃油效率。

5.When throwing a ball, the shape influences the amount of air resistance 空气阻力 it encounters.

投掷球时，球的形状会影响它所遇到的空气阻力。

作文

Air resistance, often referred to as drag, is a fundamental concept in physics that describes the opposing force experienced by an object moving through air. This force acts in the opposite direction of the object's motion and is influenced by several factors, including the object's speed, shape, and surface area. Understanding air resistance (空气阻力) is crucial for various applications, from designing vehicles to optimizing athletic performance.When a car speeds down the highway, it encounters air resistance (空气阻力), which increases with the square of its velocity. This means that as the car accelerates, the force of air resistance (空气阻力) becomes significantly greater, requiring more energy to maintain speed. Engineers take this into account when designing cars, aiming to create streamlined shapes that minimize air resistance (空气阻力). For instance, sports cars often feature sleek designs that reduce drag, allowing them to travel faster while using less fuel.In the realm of sports, athletes also need to consider air resistance (空气阻力) to enhance their performance. For example, cyclists wear tight-fitting clothing and use aerodynamic helmets to decrease air resistance (空气阻力) while racing. By reducing the drag they experience, cyclists can maintain higher speeds with less effort, which can be the difference between winning and losing a race.Furthermore, air resistance (空气阻力) plays a significant role in the field of aerodynamics, particularly in aviation. Airplanes are designed to minimize air resistance (空气阻力) to improve fuel efficiency and overall performance. Engineers meticulously calculate the shape of wings and fuselage to ensure that planes can glide smoothly through the atmosphere. The study of air resistance (空气阻力) is essential for developing new aircraft and improving existing models, as even minor reductions in drag can lead to substantial savings in fuel costs and increased range.Another interesting aspect of air resistance (空气阻力) is its impact on falling objects. When an object is dropped, it initially accelerates due to gravity. However, as it falls, it encounters air resistance (空气阻力), which increases with speed until it balances the force of gravity. At this point, the object reaches terminal velocity, where it falls at a constant speed. This phenomenon is crucial for understanding how parachutes work. A parachute increases the surface area of the falling object, significantly enhancing air resistance (空气阻力) and allowing for a safe descent.In conclusion, air resistance (空气阻力) is a vital concept in multiple fields, influencing everything from vehicle design to athletic performance and aviation. By understanding the principles of air resistance (空气阻力), we can innovate and optimize our approaches to various challenges. Whether it's making cars more efficient, helping athletes achieve their best, or designing safer aircraft, recognizing the effects of air resistance (空气阻力) enables us to push the boundaries of what is possible. As technology continues to advance, the study of air resistance (空气阻力) will remain an integral part of engineering and scientific exploration.