circular orbit

简明释义

圆轨道

英英释义

例句

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

天文学家观察到这颗行星在其恒星周围以稳定的圆形轨道运动。

2.In a circular orbit, the gravitational force and the centripetal force are balanced.

在圆形轨道中，重力和向心力是平衡的。

3.The satellite was launched into a circular orbit around the Earth to ensure consistent coverage.

卫星被发射到一个圆形轨道，以确保持续的覆盖。

4.The International Space Station travels in a low circular orbit approximately 400 kilometers above the Earth.

国际空间站在距离地球约400公里的低圆形轨道上飞行。

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

为了维持圆形轨道，航天器必须定期调整速度。

作文

In the vast universe, celestial bodies such as planets, moons, and stars move in various paths dictated by the laws of physics. One of the most fundamental types of movement is known as a circular orbit. This term refers to the path that an object takes when it revolves around another object in a circular shape. The concept of a circular orbit is crucial in understanding how gravitational forces work in space. For example, when we observe the Earth and its relationship with the Sun, we can see that Earth travels in a near-perfect circular orbit, which allows it to maintain a stable environment conducive to life.The idea of a circular orbit can be traced back to the early astronomers who studied the night sky. They noticed that planets appeared to move in predictable patterns, leading them to develop models of the solar system. The work of Johannes Kepler, who formulated the laws of planetary motion, was instrumental in explaining how planets travel in elliptical orbits, but the simplified model of a circular orbit helps us grasp the basic principles of orbital mechanics.In a circular orbit, the gravitational force between the two objects provides the necessary centripetal force to keep the orbiting object in motion. For instance, the Moon orbits the Earth in a circular orbit, held in place by Earth's gravity. If the Moon were to suddenly lose this gravitational pull, it would no longer follow its circular orbit and would drift off into space. This illustrates the delicate balance of forces that govern celestial mechanics.Understanding circular orbits is also vital for space exploration. When scientists and engineers design missions to send spacecraft to other planets, they must carefully calculate the trajectories needed to achieve a stable circular orbit. For example, the Hubble Space Telescope was placed in a low Earth orbit, where it continuously circles the planet, providing invaluable data about the universe.Moreover, the concept of a circular orbit extends beyond just celestial mechanics. It can be applied metaphorically to various aspects of life. For instance, one might consider the cyclical nature of seasons or the repetitive patterns in human behavior as analogous to a circular orbit. Just as planets return to their starting points after completing an orbit, people often find themselves revisiting certain experiences or lessons throughout their lives.In conclusion, the term circular orbit encompasses a fundamental aspect of our understanding of the universe. It represents not only the physical paths of celestial bodies but also serves as a metaphor for the cycles we encounter in our daily lives. By studying circular orbits, we gain insight into the intricate dance of gravitational forces at play, allowing us to appreciate the beauty and complexity of the cosmos. As we continue to explore the universe, the principles of circular orbits will undoubtedly remain a cornerstone of our knowledge, guiding us through the vastness of space and time.

在浩瀚的宇宙中，行星、卫星和恒星等天体沿着由物理法则决定的各种路径运动。最基本的运动类型之一被称为圆形轨道。这个术语指的是一个物体围绕另一个物体以圆形轨迹旋转时所采取的路径。圆形轨道的概念对理解引力在太空中的作用至关重要。例如，当我们观察地球与太阳的关系时，可以看到地球在几乎完美的圆形轨道上运行，这使得它能够维持适合生命的稳定环境。圆形轨道的想法可以追溯到早期研究夜空的天文学家。他们注意到行星似乎以可预测的模式移动，这使他们发展出太阳系模型。约翰内斯·开普勒的工作为行星运动定律的制定提供了重要的基础，他解释了行星如何在椭圆轨道上运动，但简化的圆形轨道模型帮助我们掌握轨道力学的基本原理。在圆形轨道中，两者之间的引力提供了保持运行物体运动所需的向心力。例如，月球在圆形轨道上绕地球运行，被地球的引力所固定。如果月球突然失去这种引力，它将不再遵循圆形轨道，而是漂流到太空中。这说明了支配天体力学的力量之间的微妙平衡。理解圆形轨道对太空探索也至关重要。当科学家和工程师设计任务以将航天器送往其他行星时，他们必须仔细计算实现稳定圆形轨道所需的轨迹。例如，哈勃太空望远镜被放置在低地球轨道上，在那里它不断环绕地球，为我们提供关于宇宙的宝贵数据。此外，圆形轨道的概念不仅限于天体力学。它还可以隐喻性地应用于生活的各个方面。例如，人们可能会认为季节的循环性质或人类行为中的重复模式类似于圆形轨道。正如行星在完成一次轨道后返回起点一样，人们常常发现自己在生活中重新经历某些经历或教训。总之，圆形轨道这一术语涵盖了我们对宇宙理解的一个基本方面。它不仅代表了天体的物理路径，还作为我们日常生活中周期性的隐喻。通过研究圆形轨道，我们获得了对引力作用下精巧舞蹈的深入了解，使我们能够欣赏宇宙的美丽与复杂。随着我们继续探索宇宙，圆形轨道的原理无疑将继续成为我们知识的基石，引导我们穿越时间和空间的浩瀚。