nautical tables

简明释义

航海表

英英释义

例句

1.In maritime training, students learn how to read nautical tables effectively.

在海事培训中，学生们学习如何有效地阅读海洋表。

2.The captain consulted the nautical tables for accurate navigation.

船长查阅了海洋表以获得准确的导航信息。

3.Sailors often rely on nautical tables to determine their position at sea.

水手们常常依靠海洋表来确定他们在海上的位置。

4.Using nautical tables, we calculated the distance to our next port.

通过使用海洋表，我们计算出到下一个港口的距离。

5.The nautical tables helped us adjust our course for the tides.

这份海洋表帮助我们调整航线以应对潮汐。

作文

Navigating the vast and unpredictable seas has always been a challenge for sailors and navigators throughout history. To aid in this endeavor, mariners have relied on various tools and resources, one of the most essential being the nautical tables. These tables provide crucial information that helps in determining the position of a vessel at sea, ensuring safe and accurate navigation. In this essay, I will explore the significance of nautical tables in maritime navigation, their historical development, and their role in modern sailing practices.The origins of nautical tables can be traced back to ancient civilizations, where early navigators used rudimentary methods to chart their courses. Over time, as exploration expanded and maritime trade flourished, the need for more precise navigation became apparent. The advent of astronomical navigation marked a turning point, leading to the creation of sophisticated nautical tables that incorporated celestial bodies' positions. By using these tables, sailors could determine their latitude and longitude, allowing them to navigate with greater accuracy.One of the most significant contributions to nautical tables came from the development of the sextant in the 18th century. This instrument enabled navigators to measure the angle between a celestial body and the horizon, which was then cross-referenced with nautical tables to calculate their exact position. The precision offered by these tables revolutionized sea travel, reducing the risks associated with navigation and increasing the confidence of sailors venturing into unknown waters.In addition to celestial navigation, nautical tables also include vital information about tides, currents, and other environmental factors that can affect a vessel's journey. For instance, tide tables indicate the times and heights of high and low tides, which are essential for entering harbors or navigating shallow waters. Current tables provide data on the flow of water in specific areas, helping sailors plan their routes effectively. Understanding these elements is crucial for safe navigation, and nautical tables serve as a reliable reference for mariners.Today, while technology has advanced significantly, the fundamental principles behind nautical tables remain relevant. Modern navigators utilize GPS and electronic charts, but many still refer to traditional nautical tables as a backup or for educational purposes. Learning to use these tables fosters a deeper understanding of navigation principles and enhances a sailor's skills. Furthermore, in emergency situations where electronic devices may fail, knowledge of nautical tables can be invaluable.In conclusion, nautical tables have played a pivotal role in the history of maritime navigation. From their humble beginnings to their current applications, they have provided sailors with the necessary information to traverse the world's oceans safely. As we continue to embrace technological advancements in navigation, the importance of understanding and utilizing nautical tables should not be overlooked. They are not merely historical artifacts but essential tools that contribute to the safety and success of maritime endeavors. Whether one is a seasoned sailor or a novice, mastering the use of nautical tables remains an invaluable skill in the art of navigation.

在广阔而不可预测的海洋中导航，一直以来都是航海者和导航员面临的挑战。为了帮助解决这一难题，海员们依赖于各种工具和资源，其中最重要的就是海上表。这些表提供了关键的信息，帮助确定船只在海上的位置，确保安全和准确的导航。在这篇文章中，我将探讨海上表在海洋导航中的重要性、它们的发展历史以及它们在现代航海实践中的作用。海上表的起源可以追溯到古代文明，当时早期的航海者使用简单的方法来绘制航线。随着时间的推移，随着探索的扩大和海上贸易的繁荣，对更精确导航的需求变得显而易见。天文导航的出现标志着一个转折点，促使创建了复杂的海上表，其中包含了天体位置的数据。通过使用这些表，海员可以确定自己的纬度和经度，从而以更高的准确性进行导航。18世纪，六分仪的发展为海上表做出了重要贡献。这种仪器使导航员能够测量天体与地平线之间的角度，然后与海上表交叉参考，以计算出他们的确切位置。这些表所提供的精确性彻底改变了海上旅行，减少了与导航相关的风险，并增强了航海者在未知水域航行的信心。除了天文导航外，海上表还包括潮汐、洋流和其他可能影响船只航行的环境因素的重要信息。例如，潮汐表指示高低潮的时间和高度，这对于进入港口或在浅水区航行至关重要。洋流表提供特定区域水流的数据，帮助海员有效规划航线。理解这些要素对安全导航至关重要，而海上表则作为海员可靠的参考。如今，尽管技术已经显著进步，但海上表背后的基本原理仍然适用。现代导航员利用GPS和电子海图，但许多人仍然将传统的海上表作为备用或用于教育目的。学习使用这些表格有助于加深对导航原理的理解，并提高海员的技能。此外，在电子设备可能失效的紧急情况下，掌握海上表的知识可能是无价的。总之，海上表在海洋导航历史中发挥了关键作用。从它们的简单起源到当前的应用，它们为海员提供了必要的信息，使他们能够安全地穿越全球的海洋。随着我们继续接受导航技术的进步，理解和使用海上表的重要性不应被忽视。它们不仅仅是历史文物，更是为海洋事业的安全和成功做出贡献的重要工具。无论是经验丰富的航海者还是新手，掌握使用海上表的技能仍然是导航艺术中不可或缺的能力。