cometary

简明释义

英[ˈkɒmɪtəri]美[ˈkɑːmɪtəri]

adj. 彗星的；彗星似的

英英释义

单词用法

同义词

反义词

例句

1.Project Rosetta is the latest in a series of cometary close encounters stretching back to Giotto, another ESA mission, which in 1986 passed within 600km of a more familiar comet, Halley's.

罗塞塔计划是一系列追赶卫星任务中继乔托号——1986年穿过我们熟悉的哈雷彗星600公里处的另一项ESA的任务——后最新任务。

2.Moon rocks show that lunar water has more heavy hydrogen than does terrestrial water, indicating a cometary origin. Christopher Intagliata reports The Apollo moon missions ended almost 40 years ago.

研究表明，月球岩石中的水资源比地球水资源包含更多的重氢元素，意即月球水有可能来源于彗星。

3.The cometary ejection play a crucial role in formation and evolution of the meteoroid stream.

彗星的喷发速度在流星群的演化过程中起着重要作用。

4.Moon rocks show that lunar water has more heavy hydrogen than does terrestrial water, indicating a cometary origin. Christopher Intagliata reports The Apollo moon missions ended almost 40 years ago.

研究表明，月球岩石中的水资源比地球水资源包含更多的重氢元素，意即月球水有可能来源于彗星。

5.Energetic light from this star is eating away the dust of the dark cometary globule at the top right the image.

从这颗恒星发出的高能光线正把途中右上角的黯淡的彗星似的小球体中的尘埃消灭掉。

6.NASA appears to know something about this red cometary orb.

美国宇航局似乎知道这个红色慧星天体的东西。

7.Stardust's cometary and interstellar dust samples will help provide answers to fundamental questions about the origins of the solar system.

星团的采样的彗星和星际尘埃样本将有助于回答关于太阳系起源的一些基本问题。

8.Cometary accurate orbital motion is a complex and difficult problem. Its remarkable characteristic is the presence of the non-gravitational effect.

彗星的准确轨道运动的确定是个复杂而困难的问题，其显著特点是存在非引力效应。

9.The scientists studied the cometary 彗星的 activity to predict its next appearance.

科学家们研究了彗星的活动，以预测它的下次出现。

10.The study of cometary 彗星的 materials can provide insights into the early solar system.

研究彗星的材料可以提供关于早期太阳系的见解。

11.Many ancient cultures viewed cometary 彗星的 appearances as omens.

许多古代文化将彗星的出现视为征兆。

12.The cometary 彗星的 tail is formed by gas and dust released from the nucleus.

彗星的尾巴是由从核释放的气体和尘埃形成的。

13.Astronomers are excited about the upcoming cometary 彗星的 event that will be visible to the naked eye.

天文学家们对即将到来的彗星的事件感到兴奋，这将肉眼可见。

作文

The universe is a vast and mysterious place, filled with wonders that have captivated humanity for centuries. Among these wonders are celestial bodies known as comets, which have long been a source of fascination for astronomers and stargazers alike. When we refer to something as cometary, we are talking about anything related to comets, including their physical characteristics, behaviors, and the impact they have on our understanding of the cosmos.Comets are often described as 'dirty snowballs' because they are composed of ice, dust, and rocky material. As they approach the sun, the heat causes the ice to vaporize, creating a glowing coma and sometimes a spectacular tail that can stretch for millions of kilometers. This phenomenon is what makes comets so visually stunning and interesting to observe. The cometary activity is not only beautiful but also provides valuable information about the early solar system. By studying comets, scientists can gain insights into the conditions that existed during the formation of our planet and others in the solar system.One of the most famous comets in history is Halley's Comet, which appears in our skies approximately every 76 years. Its predictable return has allowed scientists to study it over multiple generations. Each time Halley's Comet comes close to Earth, it offers a unique opportunity to observe its cometary features, such as the tail's length and the composition of the coma. These observations have led to significant advancements in our understanding of not only comets but also the broader mechanics of the solar system.In recent years, space missions have been launched to study comets up close. For instance, the European Space Agency's Rosetta mission successfully landed a probe on the comet 67P/Churyumov-Gerasimenko in 2014. This mission provided unprecedented data on the cometary structure and composition, revealing that comets may contain complex organic molecules that could be the building blocks of life. Such findings have sparked discussions about the origins of life on Earth and whether comets could have played a role in delivering essential elements to our planet.Moreover, the study of cometary phenomena extends beyond just scientific curiosity; it also has implications for planetary defense. Understanding the trajectories and behaviors of comets can help us predict potential impacts on Earth. While the likelihood of a catastrophic collision with a comet is low, the consequences of such an event could be devastating. Therefore, monitoring cometary activity is crucial for ensuring the safety of our planet.In conclusion, the term cometary encompasses a wide range of topics related to comets, from their physical characteristics to their significance in understanding our solar system. As we continue to explore the mysteries of the universe, the study of cometary bodies will undoubtedly remain a vital area of research. Whether through telescopes or space missions, the pursuit of knowledge about these celestial wonders will continue to inspire future generations of scientists and enthusiasts alike. The beauty and intrigue of comets remind us of the vastness of the universe and our place within it, encouraging us to look up at the night sky with wonder and curiosity.

宇宙是一个广阔而神秘的地方，充满了几个世纪以来吸引人类的奇观。在这些奇观中，有一种被称为彗星的天体，它们一直是天文学家和星空观察者的迷人源泉。当我们提到某物是彗星的时，我们指的是与彗星相关的任何事物，包括它们的物理特征、行为以及它们对我们理解宇宙的影响。彗星通常被描述为“肮脏的雪球”，因为它们由冰、尘埃和岩石材料组成。当它们接近太阳时，热量使冰蒸发，形成发光的晕， 有时还会形成一条可以延伸数百万公里的壮观尾巴。这个现象使得彗星在视觉上既美丽又有趣。彗星的活动不仅美丽，而且提供了关于早期太阳系的宝贵信息。通过研究彗星，科学家可以获得关于我们星球和太阳系中其他星球形成时存在的条件的见解。历史上最著名的彗星之一是哈雷彗星，它大约每76年出现在我们的天空中。它的可预测返回使得科学家能够跨世代地研究它。每当哈雷彗星靠近地球时，它都会提供一个独特的机会来观察其彗星的特征，如尾巴的长度和晕的成分。这些观察导致了我们对不仅是彗星，而且是太阳系更广泛机制的重要进展。近年来，已经发射了太空任务以近距离研究彗星。例如，欧洲航天局的罗塞塔任务在2014年成功地将探测器着陆在彗星67P/丘留莫夫-赫拉西门科上。该任务提供了前所未有的数据，揭示了彗星的结构和成分，表明彗星可能含有复杂的有机分子，这些分子可能是生命的构建块。这些发现引发了关于地球生命起源的讨论，以及彗星是否可能在向我们的星球输送基本元素方面发挥了作用。此外，研究彗星的现象不仅仅是科学好奇心，它还有行星防御的意义。了解彗星的轨迹和行为可以帮助我们预测潜在的地球撞击。尽管彗星与地球发生灾难性碰撞的可能性很低，但此类事件的后果可能是毁灭性的。因此，监测彗星的活动对确保我们星球的安全至关重要。总之，术语彗星的涵盖了与彗星相关的一系列主题，从它们的物理特征到它们在理解我们太阳系中的重要性。随着我们继续探索宇宙的奥秘，对彗星的研究无疑将继续成为一个重要的研究领域。无论是通过望远镜还是太空任务，追求对这些天体奇观的知识将继续激励未来几代科学家和爱好者。彗星的美丽和魅力提醒我们宇宙的广袤以及我们在其中的位置，鼓励我们以惊奇和好奇的目光仰望夜空。