nautical mile

简明释义

海里海里

英英释义

例句

1.The distance between the two islands is approximately 20 nautical miles.

两个岛屿之间的距离大约是20海里。

2.A nautical mile is defined as one minute of latitude.

海里被定义为一分纬度。

3.The captain ordered the crew to chart a course for 100 nautical miles east.

船长命令船员绘制一条向东航行100海里的航线。

4.The ship sailed 50 nautical miles from the harbor.

船只从港口航行了50海里。

5.The aircraft flew at an altitude of 10,000 nautical miles above sea level.

飞机在海平面上方飞行了10,000海里的高度。

作文

Understanding the concept of a nautical mile is crucial for anyone involved in maritime navigation or aviation. A nautical mile is defined as exactly 1,852 meters or about 1.15078 miles. This unit of measurement is particularly important because it is based on the Earth's geometry, specifically the circumference of the Earth. The nautical mile is used to measure distances at sea and in the air, making it essential for pilots and sailors alike. The reason why the nautical mile is preferred over the standard mile in navigation is that it corresponds to one minute of latitude. This means that if you travel one nautical mile north or south, you will have moved one minute of latitude on a map. This relationship between distance and latitude simplifies navigation, as it allows navigators to use charts that are based on the Earth's spherical shape. For example, if a sailor knows they are currently at 30 degrees north latitude and they travel 60 nautical miles north, they can easily calculate that they will be at 31 degrees north latitude.Moreover, the nautical mile is also critical for international maritime law. Many treaties and conventions, including the United Nations Convention on the Law of the Sea (UNCLOS), use the nautical mile as a standard unit for defining territorial waters and exclusive economic zones. Under UNCLOS, coastal states have sovereignty over their territorial waters, which extend up to 12 nautical miles from their baselines. This legal framework helps to regulate maritime activities and resolve disputes between nations.In addition to its practical applications in navigation and law, the nautical mile also has historical significance. The term originated from the need to measure distances on the ocean, where traditional units like the statute mile were not as effective due to the curvature of the Earth. Sailors in the past developed various methods to calculate distances based on the stars and the horizon, leading to the establishment of the nautical mile as a standardized unit.Today, with advancements in technology, the importance of the nautical mile remains unchanged. Modern GPS systems and electronic navigation tools continue to utilize the nautical mile for accuracy and consistency. As we navigate through an increasingly interconnected world, understanding the nautical mile and its implications becomes even more important.In conclusion, the nautical mile is more than just a unit of measurement; it is a fundamental aspect of maritime navigation, international law, and historical development. Whether you are a sailor charting a course across the ocean or a pilot flying high above the clouds, grasping the significance of the nautical mile is essential for safe and effective navigation. As we continue to explore the vastness of our planet's waters, the nautical mile will undoubtedly remain a vital part of our journey.

理解海里的概念对任何参与海洋导航或航空的人来说都是至关重要的。海里被定义为确切的1852米或大约1.15078英里。这个测量单位尤为重要，因为它是基于地球的几何形状，特别是地球的周长。海里用于测量海洋和空中的距离，这使得它对飞行员和水手都至关重要。选择在导航中使用海里而非标准英里是因为它对应于一分纬度。这意味着如果你向北或向南移动一海里，你将会在地图上移动一分纬度。例如，如果一名水手知道他们当前位于北纬30度，并且他们向北行驶60海里，他们可以轻松计算出他们将位于北纬31度。此外，海里对于国际海洋法也至关重要。许多条约和公约，包括《联合国海洋法公约》（UNCLOS），都使用海里作为定义领海和专属经济区的标准单位。在UNCLOS下，沿海国家对其领海拥有主权，这些领海从其基线延伸最多12海里。这一法律框架有助于规范海洋活动并解决国家之间的争端。除了在导航和法律中的实际应用外，海里还有历史意义。这个术语源于在海洋上测量距离的需要，在那里，传统单位如法定英里由于地球的曲率而不那么有效。过去的水手开发了各种方法来基于星星和地平线计算距离，从而建立了海里作为一个标准化单位。今天，随着技术的进步，海里的重要性仍然没有改变。现代GPS系统和电子导航工具继续利用海里以确保准确性和一致性。随着我们在一个日益互联的世界中航行，理解海里及其影响变得更加重要。总之，海里不仅仅是一个测量单位；它是海洋导航、国际法和历史发展的基本方面。无论你是一名在海洋中航行的水手，还是一名在云层上方飞行的飞行员，掌握海里的重要性对安全和有效的导航至关重要。随着我们继续探索我们星球广阔的水域，海里无疑将继续成为我们旅程的重要组成部分。