Nautical Almanac

简明释义

《航海天文历》航海历

英英释义

例句

1.During our sailing trip, we frequently consulted the Nautical Almanac for star positions.

在我们的航行旅行中，我们经常查阅Nautical Almanac（航海年鉴）以获取星星的位置。

2.The Nautical Almanac is published annually and includes data on the movements of celestial bodies.

Nautical Almanac（航海年鉴）每年出版一次，包含天体运动的数据。

3.Sailors rely on the Nautical Almanac to determine their position at sea.

水手依靠Nautical Almanac（航海年鉴）来确定他们在海上的位置。

4.Using the Nautical Almanac, navigators can calculate their latitude and longitude.

通过使用Nautical Almanac（航海年鉴），导航员可以计算他们的纬度和经度。

5.The Nautical Almanac provides essential information for celestial navigation.

Nautical Almanac（航海年鉴）提供了天文导航所需的重要信息。

作文

The sea has always been a source of fascination and adventure for humanity. From ancient mariners navigating by the stars to modern sailors using advanced technology, the art of navigation has evolved significantly over the centuries. One essential tool that has stood the test of time is the Nautical Almanac (海洋年鉴). This publication plays a crucial role in helping navigators determine their position at sea and ensure safe passage across the world's oceans.The Nautical Almanac is a comprehensive reference book that contains astronomical data necessary for celestial navigation. It provides information about the positions of celestial bodies, such as the sun, moon, planets, and stars, at various times throughout the year. By using this data, sailors can calculate their latitude and longitude based on the angles between these celestial bodies and the horizon.One of the primary functions of the Nautical Almanac is to assist navigators in taking accurate sights of celestial objects. For instance, when a sailor observes the sun at noon, they can use the data from the almanac to determine the sun's exact position at that moment. By comparing this information with their local observations, they can pinpoint their geographical location with remarkable precision.In addition to celestial positions, the Nautical Almanac also includes vital information about tides, currents, and other navigational aids. Understanding these elements is crucial for safe sailing, especially in coastal areas where tides can significantly impact a vessel's movement. Furthermore, the almanac provides details on the best times for navigation, taking into account factors such as moon phases and seasonal changes, which can affect visibility and weather conditions.Historically, the Nautical Almanac has been an indispensable resource for explorers and sailors. During the Age of Exploration, navigators relied heavily on its data to chart unknown waters and discover new lands. The ability to accurately determine one's position at sea opened up new trade routes and facilitated international commerce. Even today, despite the advent of GPS technology, many sailors still turn to the Nautical Almanac for its reliability and accuracy.Moreover, the Nautical Almanac serves as an educational tool for aspiring navigators and maritime students. Learning how to use the almanac fosters a deeper understanding of celestial navigation principles and enhances a sailor's overall skills. In an age dominated by electronic devices, the almanac remains a testament to the importance of traditional navigation techniques.In conclusion, the Nautical Almanac (海洋年鉴) is more than just a book of numbers and tables; it is a vital companion for anyone who ventures into the vastness of the sea. Its significance in the history of navigation cannot be overstated, and it continues to be a valuable resource for both professional mariners and enthusiasts alike. As we navigate the challenges of the modern world, the wisdom contained within the Nautical Almanac reminds us of the enduring connection between humanity and the sea.