celestial navigation instrument

简明释义

天文航海仪表

英英释义

例句

1.In the age of GPS, some sailors still prefer using a celestial navigation instrument 天文导航仪器 for traditional navigation.

在GPS时代，一些水手仍然更喜欢使用天文导航仪器进行传统导航。

2.The celestial navigation instrument 天文导航仪器 allows navigators to use stars and planets for accurate positioning.

该天文导航仪器允许导航员使用星星和行星进行精确定位。

3.A well-maintained celestial navigation instrument 天文导航仪器 can provide reliable readings even in poor weather conditions.

一个维护良好的天文导航仪器即使在恶劣天气条件下也能提供可靠的读数。

4.Sailors have relied on the celestial navigation instrument 天文导航仪器 for centuries to determine their position at sea.

水手们几个世纪以来一直依赖于天文导航仪器来确定他们在海上的位置。

5.During our sailing trip, we learned how to read the celestial navigation instrument 天文导航仪器 to find our way home.

在我们的航海旅行中，我们学习了如何读取天文导航仪器以找到回家的路。

作文

Celestial navigation is an ancient art that has guided sailors and explorers across the vast oceans for centuries. At the heart of this practice are various tools known as celestial navigation instruments, which allow navigators to determine their position on Earth by observing celestial bodies such as the sun, moon, planets, and stars. These instruments have evolved over time, but their fundamental purpose remains the same: to provide a reliable means of navigation without reliance on modern technology.The most commonly used celestial navigation instruments include the sextant, the astrolabe, and the chronometer. The sextant, perhaps the most famous of these tools, allows navigators to measure the angle between a celestial body and the horizon. By taking these measurements at specific times, sailors can calculate their latitude and longitude, enabling them to plot a course across the sea.Another important celestial navigation instrument is the astrolabe, which has a rich history dating back to ancient Greece. This device was originally used for various astronomical measurements, but it later became a vital tool for sailors navigating the open waters. The astrolabe allows navigators to determine the altitude of stars and other celestial bodies, which is crucial for accurate positioning.The chronometer, while not a traditional celestial navigation tool, plays a critical role in the process. It provides an accurate measure of time, which is essential for determining longitude. Without precise timekeeping, sailors would struggle to pinpoint their east-west position on the globe. Thus, the combination of these celestial navigation instruments forms a comprehensive toolkit that has stood the test of time.Understanding how to use these instruments requires extensive training and practice. Navigators must learn to read the stars and understand the movements of celestial bodies, which can be influenced by various factors such as weather conditions and the observer's location. This knowledge is not only practical but also deeply connects navigators to the natural world, fostering a sense of wonder and respect for the cosmos.In recent years, there has been a resurgence of interest in traditional navigation methods, including the use of celestial navigation instruments. As modern technology becomes more prevalent, some sailors seek to reconnect with the skills of their ancestors. They appreciate the challenge and the beauty of navigating by the stars, often citing it as a way to enhance their sailing experience.Moreover, the skills learned through celestial navigation can serve as a valuable backup in case of technology failure. Electronic navigation systems can malfunction or become unreliable, especially in remote areas. Having a solid understanding of celestial navigation instruments ensures that sailors are not entirely dependent on technology, allowing them to navigate confidently even in challenging situations.In conclusion, celestial navigation instruments are not merely relics of the past; they are essential tools that continue to play a significant role in maritime navigation today. Whether used for practical purposes or as a means of connecting with the rich history of exploration, these instruments embody the spirit of adventure and the enduring human desire to explore the unknown. As we look to the future, it is crucial to preserve and pass on the knowledge of celestial navigation, ensuring that the wisdom of our ancestors continues to guide us across the seas.

天体导航是一种古老的艺术，几个世纪以来一直引导着水手和探险者穿越辽阔的海洋。这一实践的核心是各种工具，即天体导航仪器，它们允许导航员通过观察太阳、月亮、行星和星星等天体来确定自己在地球上的位置。这些仪器随着时间的推移而发展，但其基本目的仍然相同：提供一种可靠的导航方式，而不依赖于现代技术。最常用的天体导航仪器包括六分仪、天文仪和计时器。六分仪，也许是这些工具中最著名的，允许导航员测量天体与地平线之间的角度。通过在特定时间进行这些测量，水手可以计算出他们的纬度和经度，从而能够在海上绘制航线。另一个重要的天体导航仪器是天文仪，它有着悠久的历史，可以追溯到古希腊。这个设备最初用于各种天文学测量，但后来成为水手在开阔水域中导航的重要工具。天文仪使导航员能够确定星星和其他天体的高度，这对于准确定位至关重要。计时器虽然不是传统的天体导航工具，但在这一过程中发挥着关键作用。它提供准确的时间测量，这对于确定经度至关重要。如果没有精确的计时，水手将很难确定他们在地球上的东西位置。因此，这些天体导航仪器的组合形成了一套经受住时间考验的全面工具包。理解如何使用这些仪器需要广泛的培训和实践。导航员必须学习阅读星星，了解天体的运动，这可能受到天气条件和观察者位置等各种因素的影响。这种知识不仅具有实用性，而且深深地将导航员与自然世界联系在一起，培养了对宇宙的敬畏和尊重。近年来，对传统导航方法的兴趣重新兴起，包括使用天体导航仪器。随着现代技术变得越来越普遍，一些水手寻求与祖先的技能重新连接。他们欣赏通过星星导航的挑战和美丽，常常认为这是一种增强他们航海体验的方式。此外，通过天体导航所学到的技能可以作为技术故障时的宝贵备份。电子导航系统可能会发生故障或变得不可靠，特别是在偏远地区。拥有扎实的天体导航仪器的理解确保水手不完全依赖技术，使他们即使在困难情况下也能自信地导航。总之，天体导航仪器不仅仅是过去的遗物；它们是今天海上导航中继续发挥重要作用的必不可少的工具。无论是用于实用目的还是作为与丰富的探索历史联系的一种方式，这些仪器体现了冒险的精神和人类对探索未知的持久渴望。展望未来，保护和传承天体导航的知识至关重要，确保我们祖先的智慧继续引导我们穿越海洋。