sight reduction tables

简明释义

订正表

英英释义

例句

1.Using sight reduction tables, the pilot was able to determine their flight path.

通过使用视线修正表，飞行员能够确定他们的飞行路径。

2.In celestial navigation, the sight reduction tables are essential for accurate readings.

在天文导航中，视线修正表对准确读数至关重要。

3.The training manual included instructions on how to use the sight reduction tables effectively.

培训手册中包含了如何有效使用视线修正表的说明。

4.Before setting sail, the crew reviewed the sight reduction tables for their journey.

出发前，船员们复习了他们旅程的视线修正表。

5.The navigator used the sight reduction tables to calculate the ship's position accurately.

导航员使用了视线修正表来准确计算船只的位置。

作文

In the field of navigation, especially maritime and aerial navigation, accuracy is paramount. Navigators rely on various tools and techniques to determine their position and chart a course. One such essential tool is the sight reduction tables, which play a critical role in celestial navigation. These tables are designed to simplify the process of calculating a navigator's position based on celestial observations. When a navigator takes a sighting of a celestial body, such as the sun or stars, they need to reduce that sighting to a usable format. This is where sight reduction tables come into play.The process of sight reduction involves several steps, including measuring the angle between the horizon and the celestial body, known as the altitude, and determining the time of the observation. The sight reduction tables provide a systematic way to convert these measurements into geographic coordinates. By using these tables, navigators can find their latitude and longitude based on the observed celestial data.Historically, before the advent of modern technology and GPS, sailors relied heavily on sight reduction tables for navigation. These tables were meticulously compiled and required a deep understanding of astronomy and mathematics. Navigators would often spend hours calculating their positions using these tables, ensuring their vessels stayed on course across vast oceans.Today, while technology has advanced significantly, and many navigators use electronic devices that automate these calculations, understanding sight reduction tables remains an essential skill for any serious navigator. In fact, many navigation courses still teach the fundamentals of celestial navigation and the use of these tables. This knowledge not only provides a backup in case of technological failure but also deepens the navigator's understanding of the principles of navigation.Moreover, sight reduction tables are not just limited to maritime navigation; they are also crucial in aviation. Pilots use similar methods to ensure they maintain their intended flight paths, especially when flying over remote areas where GPS signals may be unreliable. The ability to navigate using celestial bodies can be a lifesaver in emergency situations.In conclusion, sight reduction tables are a fundamental part of traditional navigation practices. They bridge the gap between celestial observations and practical navigation, allowing navigators to accurately determine their position on Earth. Despite the rise of modern technology, the principles behind sight reduction tables remain relevant and valuable. Understanding how to use these tables not only equips navigators with essential skills but also connects them to the rich history of exploration and discovery that has shaped our world today.

在导航领域，尤其是海洋和航空导航中，准确性至关重要。导航员依赖各种工具和技术来确定他们的位置并制定航线。其中一个重要的工具就是sight reduction tables，它在天文导航中发挥着关键作用。这些表格旨在简化根据天体观测计算导航员位置的过程。当导航员对天体（如太阳或星星）进行观测时，他们需要将该观测结果简化为可用格式。这就是sight reduction tables发挥作用的地方。简化观测过程涉及几个步骤，包括测量地平线与天体之间的角度，即高度，以及确定观测时间。sight reduction tables提供了一种系统化的方法，将这些测量转换为地理坐标。通过使用这些表格，导航员可以根据观察到的天文数据找到他们的纬度和经度。历史上，在现代技术和全球定位系统（GPS）出现之前，水手们非常依赖sight reduction tables进行导航。这些表格经过精心编制，需要深入了解天文学和数学。导航员通常会花费数小时使用这些表格计算他们的位置，以确保他们的船只在广阔的海洋中保持航向。如今，虽然技术已经显著进步，许多导航员使用电子设备自动化这些计算，但理解sight reduction tables仍然是任何认真导航员的基本技能。事实上，许多导航课程仍然教授天文导航的基本原理以及如何使用这些表格。这种知识不仅在技术故障的情况下提供备份，而且还加深了导航员对导航原理的理解。此外，sight reduction tables不仅限于海洋导航；它们在航空中也至关重要。飞行员使用类似的方法来确保他们保持预定的飞行路径，特别是在飞越偏远地区时，GPS信号可能不可靠。能够使用天体进行导航在紧急情况下可能是救命稻草。总之，sight reduction tables是传统导航实践的基本组成部分。它们架起了天文观测与实际导航之间的桥梁，使导航员能够准确确定他们在地球上的位置。尽管现代技术的兴起，sight reduction tables背后的原理仍然相关且有价值。理解如何使用这些表格不仅使导航员具备必要的技能，还将他们与塑造我们今天世界的探索和发现的丰富历史联系在一起。