circular orbit

简明释义

环形轨道

英英释义

例句

1.Astronomers observed the planet moving in a circular orbit around its star.

天文学家观察到行星在其恒星周围以圆形轨道运动。

2.To maintain a stable circular orbit, the spacecraft must adjust its speed regularly.

为了维持稳定的圆形轨道，航天器必须定期调整其速度。

3.In physics, a circular orbit is the path of an object moving around another object in a circular shape.

在物理学中，圆形轨道是一个物体围绕另一个物体以圆形路径移动的轨迹。

4.The space station travels in a low circular orbit around Earth.

空间站在地球周围的低圆形轨道上运行。

5.The satellite is placed in a circular orbit to ensure consistent communication coverage.

卫星被放置在圆形轨道上，以确保稳定的通信覆盖。

作文

The concept of a circular orbit is fundamental in the study of celestial mechanics and astronomy. In simple terms, a circular orbit refers to the path that an object takes when it revolves around another object in a circular shape. This motion can be observed in various astronomical systems, such as planets orbiting around the sun or moons orbiting around their respective planets. The beauty of a circular orbit lies in its simplicity and symmetry, making it a perfect example of uniform motion in physics.To understand a circular orbit, we must first consider the forces at play. The gravitational force acts as the centripetal force that keeps the orbiting body in its path. For instance, Earth maintains its circular orbit around the sun due to the sun's gravitational pull. This gravitational attraction ensures that Earth does not drift away into space but instead follows a stable path. The speed at which a planet travels in its circular orbit is crucial; it must be balanced with the gravitational pull to maintain the orbit without spiraling into the sun or drifting away.One of the most interesting aspects of circular orbits is their predictability. Objects in a circular orbit have a constant distance from the center of the mass they are orbiting. This allows scientists and astronomers to calculate various parameters, such as the orbital period, which is the time it takes for an object to complete one full revolution around another object. For example, Earth's orbital period is approximately 365.25 days, which defines our year. Similarly, satellites in a circular orbit around Earth can be predicted to return to a specific point in the sky after a set period, enabling effective communication and navigation systems.However, not all orbits are perfectly circular. Many celestial bodies follow elliptical orbits, which can vary in shape and distance from the central mass. While circular orbits are idealized models, understanding them helps scientists to grasp more complex orbital dynamics. The study of circular orbits also extends to artificial satellites, which often aim to achieve a stable circular orbit for optimal functioning. Engineers meticulously calculate the launch parameters to ensure that these satellites remain in their desired paths, providing essential services like weather forecasting, GPS, and telecommunications.In conclusion, the notion of a circular orbit is not only a cornerstone of classical mechanics but also a critical concept in modern technology and exploration. From the grand scale of planetary motion to the intricate workings of satellites, the principles governing circular orbits continue to inspire and inform our understanding of the universe. As we venture further into space, the knowledge of how objects move in circular orbits will undoubtedly play a crucial role in our quest for discovery and innovation.

“圆形轨道”的概念在天体力学和天文学的研究中是基础性的。简单来说，圆形轨道指的是一个物体围绕另一个物体以圆形路径旋转时所走的轨迹。这种运动可以在各种天文系统中观察到，例如行星围绕太阳的轨道或卫星围绕其行星的轨道。圆形轨道的美在于它的简单性和对称性，使其成为物理学中均匀运动的完美示例。要理解圆形轨道，我们必须首先考虑作用于物体的力。引力作为向心力，保持着轨道物体沿其路径运动。例如，地球因太阳的引力而保持其对太阳的圆形轨道。这种引力确保地球不会漂离太空，而是沿着稳定的路径运动。行星在其圆形轨道中旅行的速度至关重要；它必须与引力相平衡，以维持轨道而不向太阳螺旋下降或漂离。圆形轨道最有趣的方面之一是它们的可预测性。处于圆形轨道中的物体与其围绕的质量中心之间的距离是恒定的。这使得科学家和天文学家能够计算各种参数，例如轨道周期，即一个物体完成一次完整革命所需的时间。例如，地球的轨道周期大约为365.25天，这定义了我们的年份。同样，环绕地球的卫星在天空中返回特定点的时间也可以预测，使有效的通信和导航系统得以实现。然而，并非所有的轨道都是完美的圆形。许多天体遵循椭圆轨道，其形状和与中心质量的距离可能各不相同。虽然圆形轨道是理想化模型，但理解它们有助于科学家掌握更复杂的轨道动态。圆形轨道的研究还扩展到人造卫星，这些卫星通常旨在实现稳定的圆形轨道以获得最佳功能。工程师们仔细计算发射参数，以确保这些卫星保持在其预期路径中，从而提供天气预报、GPS和电信等重要服务。总之，圆形轨道的概念不仅是经典力学的基石，也是现代技术和探索的关键概念。从行星运动的宏观尺度到卫星的复杂运作，支配圆形轨道的原理继续启发和丰富我们对宇宙的理解。随着我们进一步探索太空，了解物体在圆形轨道中的运动将无疑在我们发现和创新的追求中发挥重要作用。