astronomical navigation

简明释义

天文航海

英英释义

例句

1.The use of astronomical navigation 天文导航 was essential during long voyages when GPS was not available.

在长途航行中，使用天文导航 astronomical navigation 在没有GPS的情况下至关重要。

2.Sailors have relied on astronomical navigation 天文导航 for centuries to find their way across the open sea.

水手们几个世纪以来一直依赖于天文导航 astronomical navigation 来找到穿越大海的方向。

3.Using astronomical navigation 天文导航, sailors can determine their position by measuring the angles between celestial bodies.

通过使用天文导航 astronomical navigation，水手可以通过测量天体之间的角度来确定他们的位置。

4.Many maritime academies teach astronomical navigation 天文导航 as part of their curriculum to prepare future navigators.

许多海事学院将天文导航 astronomical navigation 作为课程的一部分，以培养未来的导航员。

5.In his lecture, the professor explained the principles of astronomical navigation 天文导航 and how it differs from modern techniques.

在他的讲座中，教授解释了天文导航 astronomical navigation 的原理以及它与现代技术的不同之处。

作文

Throughout history, navigation has been a crucial skill for explorers and sailors. Among the various methods developed over centuries, astronomical navigation is one of the most significant techniques. This method utilizes celestial bodies, such as the sun, moon, stars, and planets, to determine one's position on Earth. By observing the angles between these celestial objects and the horizon, navigators can calculate their latitude and longitude, enabling them to traverse vast oceans and discover new lands.The roots of astronomical navigation can be traced back to ancient civilizations. The Polynesians, for example, were skilled navigators who relied on their knowledge of the stars to navigate the Pacific Ocean. They memorized the positions of stars and used them as guides to reach distant islands. Similarly, the ancient Greeks and Romans developed sophisticated tools, such as the astrolabe and sextant, which allowed them to measure the altitude of celestial bodies. These advancements laid the groundwork for modern navigation techniques.In the Age of Exploration, astronomical navigation became indispensable for European explorers. Navigators like Ferdinand Magellan and Vasco da Gama relied heavily on this method to chart their courses across uncharted waters. Their voyages not only expanded geographical knowledge but also opened up new trade routes and cultural exchanges between continents.One of the key components of astronomical navigation is the concept of time. Accurate timekeeping is essential for determining longitude. The invention of the marine chronometer in the 18th century revolutionized navigation by allowing sailors to keep precise time at sea. This innovation enabled navigators to calculate their longitudinal position with great accuracy, significantly improving maritime safety and efficiency.Despite the advent of modern technology, such as GPS, astronomical navigation remains relevant today. Many sailors and aviators still learn this timeless skill as a backup to electronic systems. In situations where technology fails or is unavailable, the ability to navigate using the stars can be a lifesaver. Furthermore, understanding astronomical navigation deepens our appreciation for the natural world and our place within it.In conclusion, astronomical navigation is not just a historical technique; it is a testament to human ingenuity and exploration. It showcases our ability to observe and interpret the universe around us. As we continue to advance technologically, it is essential to preserve and honor the traditional skills that have guided humanity for centuries. By doing so, we ensure that future generations can appreciate the art and science of navigation, both past and present.

纵观历史，导航一直是探险家和水手的一项关键技能。在几个世纪的发展中，各种方法应运而生，其中天文导航是最重要的技术之一。这种方法利用天体，如太阳、月亮、星星和行星，来确定在地球上的位置。通过观察这些天体与地平线之间的角度，导航员可以计算出他们的纬度和经度，使他们能够穿越广阔的海洋，发现新大陆。天文导航的根源可以追溯到古代文明。例如，波利尼西亚人是一群熟练的航海者，他们依靠对星星的知识在太平洋上航行。他们记住星星的位置，并将其作为指引以到达遥远的岛屿。同样，古希腊和罗马人也开发了复杂的工具，如浑天仪和六分仪，这使他们能够测量天体的高度。这些进步为现代导航技术奠定了基础。在探索时代，天文导航对欧洲探险家来说是不可或缺的。像费尔南多·麦哲伦和瓦斯科·达伽马这样的导航员在未被勘探的水域中严重依赖这种方法来绘制他们的航线。他们的航行不仅扩展了地理知识，还开辟了新的贸易路线和各大洲之间的文化交流。天文导航的一个关键组成部分是时间的概念。准确的计时对于确定经度至关重要。18世纪海洋计时器的发明彻底改变了导航，因为它允许水手在海上保持精确的时间。这一创新使导航员能够以极高的精确度计算他们的经度位置，从而显著提高了海上安全性和效率。尽管现代技术如GPS的出现，但天文导航今天仍然具有相关性。许多水手和飞行员仍然学习这一永恒的技能，以作为电子系统的备份。在技术失败或无法使用的情况下，利用星星进行导航的能力可能会拯救生命。此外，理解天文导航加深了我们对自然世界及我们在其中位置的欣赏。总之，天文导航不仅仅是一种历史技术；它是人类聪明才智和探索精神的证明。它展示了我们观察和解读周围宇宙的能力。随着我们技术的不断进步，保存和尊重那些指导人类数百年的传统技能至关重要。通过这样做，我们确保未来几代人能够欣赏导航艺术和科学，无论是过去还是现在。