nautical mile

简明释义

海里term航海术语

英英释义

例句

1.The yacht race covered a total distance of 100 nautical miles over the weekend.

周末的游艇比赛总共覆盖了100海里的距离。

2.The pilot calculated the flight path to be 500 nautical miles long.

飞行员计算出飞行路径长达500海里。

3.A nautical mile is based on the circumference of the Earth, equivalent to one minute of latitude.

一个海里是基于地球的周长，相当于一分纬度。

4.The ship sailed 50 nautical miles from the harbor to reach the open sea.

这艘船从港口航行了50海里到达公海。

5.The distance between the two islands is approximately 30 nautical miles.

这两个岛屿之间的距离大约是30海里。

作文

Understanding the concept of a nautical mile is essential for anyone involved in maritime navigation or aviation. A nautical mile is defined as the distance equivalent to one minute of latitude, which translates to approximately 1.15078 miles or 1.852 kilometers on the Earth's surface. This measurement is particularly significant because it allows navigators to easily calculate distances on charts that are based on the spherical shape of the Earth. Unlike a standard mile, which is used on land, the nautical mile takes into account the curvature of the Earth, making it a more accurate unit for ocean and air travel.The use of nautical miles dates back to the early days of exploration when sailors needed a reliable method to measure distances at sea. Traditional methods of measuring distance on land, such as using a mile or kilometer, proved inadequate due to the unique challenges posed by navigating across vast oceans. As a result, the nautical mile was established as a standardized unit of measurement that would facilitate better navigation.One of the key advantages of using nautical miles is its direct correlation with degrees of latitude and longitude. Since the Earth is divided into 360 degrees of longitude and 180 degrees of latitude, each degree of latitude corresponds to 60 nautical miles. This relationship simplifies the process of plotting a course on nautical charts, as navigators can easily convert between degrees and nautical miles. For instance, if a ship needs to travel from one point to another that is 30 degrees of latitude apart, the distance would be calculated as 30 x 60 = 1800 nautical miles.Furthermore, the nautical mile is also integral in aviation, where pilots use it to measure distances during flight. Air traffic control systems and flight planning tools are designed around this unit of measurement, ensuring that aircraft maintain safe distances from one another. Pilots are trained to understand and utilize nautical miles when calculating their flight paths, altitudes, and speeds, which enhances overall safety in the skies.In conclusion, the nautical mile serves as a vital unit of measurement for navigators at sea and in the air. Its unique properties allow for precise calculations that take into account the Earth's curvature, making it indispensable for safe and effective navigation. Whether you are a seasoned sailor, a pilot, or simply someone interested in understanding how we navigate our world, grasping the significance of the nautical mile will enhance your appreciation for the complexities of travel across our planet's vast oceans and skies. As we continue to explore and connect the world, the nautical mile remains a cornerstone of navigation that has stood the test of time.

理解海里的概念对于任何参与海上导航或航空的人来说都是至关重要的。海里被定义为相当于一度纬度的距离，这大约相当于地球表面上的1.15078英里或1.852公里。这个测量尤为重要，因为它使导航员能够轻松计算基于地球球形的图表上的距离。与在陆地上使用的标准英里不同，海里考虑了地球的曲率，使其成为海洋和空中旅行更准确的单位。海里的使用可以追溯到探索的早期，当时水手们需要一种可靠的方法来测量海上的距离。传统的陆地距离测量方法，如使用英里或公里，由于在广阔的海洋中导航所带来的独特挑战而显得不足。因此，建立了海里作为一种标准化的测量单位，以便于更好的导航。使用海里的一个主要优点是它与纬度和经度的度数直接相关。由于地球分为360度经度和180度纬度，每一度纬度对应60海里。这种关系简化了在海图上绘制航线的过程，因为导航员可以轻松地在度数和海里之间进行转换。例如，如果一艘船需要从一个点航行到另一个点，纬度相差30度，那么距离将计算为30 x 60 = 1800海里。此外，海里在航空中也至关重要，飞行员在飞行过程中使用它来测量距离。空中交通管制系统和飞行计划工具都是围绕这一测量单位设计的，确保飞机之间保持安全距离。飞行员接受过训练，理解并利用海里来计算他们的航线、高度和速度，从而提高了天空的整体安全性。总之，海里作为海上和空中导航的重要测量单位。它的独特属性允许精确计算，考虑到地球的曲率，使其成为安全有效导航不可或缺的部分。无论你是一位经验丰富的水手、飞行员，还是仅仅对理解我们如何在世界上导航感兴趣的人，掌握海里的重要性将增强你对我们在地球广阔海洋和天空中旅行复杂性的欣赏。随着我们继续探索和连接世界，海里仍然是经过时间考验的导航基石。