occultation

简明释义

英[ˌɒkʌlˈteɪʃən]美[ˌɑːkʌlˈteɪʃən]

n. [天] 掩星；掩蔽

英英释义

单词用法

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反义词

例句

1.Discuss the radio occultation technique in details.

详细描述了无线电掩星的基本技术原理。

2.Because the Moon and bright planets wander through the sky near the ecliptic plane, such occultation events are not uncommon, but they are dramatic, especially in telescopic views.

因为月球和明亮的行星出现在天空中黄道平面附近，这种掩星事件也很平常，但是它们也很富有戏剧性，特别是在望远镜影像里。

3.If LEO satellite orbit changes, then the GPS occultation event's number and distribution will be different.

不同的LEO卫星，将使发生的掩星事件数量和分布有所差别。

4.If LEO satellite orbit changes, then the GPS occultation events number and distribution will be different.

不同的LEO卫星，将使发生的掩星事件数量和分布有所差别。

5.The influence of the geography on the height of the occultation is analyzed using data observed by CHAMP occultation, and it is ve...

从CHAMP掩星观测结果分析，得到了地形对掩星观测高度有重要影响的新结论。

6.As an extended technique of GNSS radio occultation (RO), the airborne RO sounding has attracted much wider attention.

作为星载掩星技术的推广，基于飞机平台的无线电掩星技术备受关注。

7.Last November, the occultation took place.

去年11月，掩星出现了。

8.The noise occultation was significant, and the undertone was the easiest one to be occulted.

噪音对信号的掩蔽作用显著，其中低音最易被掩蔽。

9.When the low-Earth orbit (LEO) satellite is low, the contribution of the Total Electron Contents (TEC) above the satellite is not neglectable for inversion of GPS-LEO ionospheric occultation.

电离层掩星观测中，当低轨卫星(LEO)轨道高度较低时，轨道以上的电离层电子总含量(TEC)对掩星反演的影响不能忽略。

10.The occultation 掩星现象 of a star by an asteroid can provide valuable data for researchers.

小行星对恒星的occultation 掩星现象可以为研究人员提供宝贵的数据。

11.Astronomers use telescopes to track the occultation 掩星现象 events that occur in our solar system.

天文学家使用望远镜追踪我们太阳系中发生的occultation 掩星现象事件。

12.The study of occultation 掩星现象 can help scientists learn more about the atmospheres of exoplanets.

对occultation 掩星现象的研究可以帮助科学家更好地了解系外行星的大气层。

13.The astronomers observed the occultation 掩星现象 of a distant star by a nearby planet.

天文学家观察到了一个遥远恒星被邻近行星掩盖的occultation 掩星现象。

14.During the lunar eclipse, we witnessed the occultation 掩蔽 of the sun by the moon.

在月食期间，我们目睹了月亮对太阳的occultation 掩蔽。

作文

The universe is full of wonders and phenomena that captivate our imagination. One such phenomenon is the event known as occultation, which occurs when one celestial body moves in front of another, temporarily obscuring it from view. This fascinating occurrence can happen with various celestial objects, including stars, planets, and even the moon. Understanding occultation can deepen our appreciation for the intricate dance of celestial bodies in our night sky.Historically, occultation has played a significant role in astronomy. Ancient astronomers observed these events and documented them, leading to a greater understanding of the movements of celestial bodies. For instance, the occultation of a star by the moon was used to measure the distance between the Earth and the moon, providing crucial data for the development of astronomical theories. These observations were not merely academic; they were essential for navigation and timekeeping in ancient civilizations.In modern times, the study of occultation continues to be relevant. Astronomers utilize advanced telescopes and technology to predict and observe these events with great precision. For example, when a distant star is occulted by a planet or a moon, researchers can gather valuable information about the atmosphere and composition of the obscuring body. The light from the star can reveal details about the atmosphere of the planet that obscured it, such as its temperature and chemical composition. This kind of research contributes significantly to our understanding of exoplanets and their potential to support life.Moreover, occultation events are not just limited to professional astronomers. Amateur astronomers also participate in observing these occurrences, often sharing their findings with the scientific community. This collaborative effort enhances our collective knowledge and fosters a sense of community among those who share a passion for the cosmos. Many amateur astronomers set up their telescopes during predicted occultation events, eager to capture the moment when one celestial body passes in front of another.The beauty of occultation lies not only in its scientific significance but also in its aesthetic appeal. Watching a star gradually disappear behind the silhouette of the moon can be a breathtaking experience. It serves as a reminder of the vastness of the universe and our small place within it. Such moments can inspire awe and wonder, prompting us to reflect on our existence and the mysteries of the cosmos.In conclusion, occultation is a remarkable celestial event that has captured the attention of astronomers throughout history. Its implications for science, navigation, and our understanding of the universe are profound. As we continue to explore the heavens, the study of occultation will undoubtedly remain an important part of our quest for knowledge. Whether through the lens of a powerful telescope or the eyes of an enthusiastic amateur, the experience of witnessing an occultation is one that connects us to the universe and to each other. Each event is a reminder of the intricate and beautiful tapestry of the cosmos, inviting us to look up and marvel at the wonders above us.

宇宙充满了奇迹和现象，吸引着我们的想象力。其中一个现象就是被称为掩蔽的事件，它发生在一个天体移动到另一个天体前面，暂时遮挡住它的视线。这一迷人的现象可以发生在各种天体上，包括恒星、行星甚至月亮。理解掩蔽可以加深我们对夜空中天体复杂舞蹈的欣赏。从历史上看，掩蔽在天文学中发挥了重要作用。古代天文学家观察这些事件并记录下来，从而更好地理解天体的运动。例如，月球对恒星的掩蔽被用来测量地球与月球之间的距离，为天文学理论的发展提供了关键数据。这些观察不仅仅是学术性的；在古代文明中，它们对导航和计时至关重要。在现代，掩蔽的研究仍然具有相关性。天文学家利用先进的望远镜和技术，以极高的精度预测和观察这些事件。例如，当一颗遥远的恒星被一颗行星或月球掩蔽时，研究人员可以收集关于遮挡天体的大气和成分的宝贵信息。恒星的光线可以揭示出遮挡它的行星大气的细节，例如温度和化学成分。这种研究对我们理解系外行星及其支持生命的潜力有着重要贡献。此外，掩蔽事件不仅限于专业天文学家。业余天文学家也参与观察这些事件，通常会将他们的发现与科学界分享。这种合作努力增强了我们的集体知识，并促进了那些热爱宇宙的人之间的社区感。许多业余天文学家在预测的掩蔽事件期间设置望远镜，渴望捕捉到一个天体经过另一个天体前面的那一刻。掩蔽的美丽不仅在于其科学意义，还有其美学吸引力。观看一颗恒星逐渐消失在月球的轮廓后面，可以是一种令人屏息的体验。这提醒我们宇宙的广阔和我们在其中的渺小地位。这种时刻可以激发敬畏和惊奇，促使我们反思自己的存在及宇宙的奥秘。总之，掩蔽是一个非凡的天文事件，贯穿历史以来吸引着天文学家的注意。它对科学、导航以及我们对宇宙理解的影响是深远的。随着我们继续探索天空，掩蔽的研究无疑将继续成为我们追求知识的重要组成部分。无论是通过强大的望远镜还是热情的业余爱好者的眼睛，目睹掩蔽的经历都是一种将我们与宇宙及彼此联系起来的体验。每一次事件都是宇宙复杂而美丽的挂毯的提醒，邀请我们仰望星空，惊叹于我们头顶的奇迹。