great circle course

简明释义

大圆航向

英英释义

例句

1.During the navigation training, students learned how to calculate a great circle course using spherical trigonometry.

在导航训练中，学生们学习如何使用球面三角学计算大圆航线。

2.The pilot adjusted the aircraft's heading to follow the great circle course to minimize fuel consumption.

飞行员调整了飞机的航向，以遵循大圆航线以减少燃料消耗。

3.When planning long-distance flights, airlines often use a great circle course to optimize travel time.

在规划长途航班时，航空公司通常使用大圆航线来优化旅行时间。

4.Sailing across the Pacific Ocean, the captain plotted a great circle course for the fastest route.

在横渡太平洋时，船长规划了一条大圆航线以获得最快的航线。

5.The navigational chart indicated that the great circle course was the most efficient path between the two islands.

导航图表显示，大圆航线是两座岛屿之间最有效的航道。

作文

Navigating the vast expanse of our planet requires an understanding of various concepts related to geography and navigation. One such concept is the great circle course, which plays a crucial role in air and sea travel. A great circle course is defined as the shortest path between two points on the surface of a sphere, which, in the context of Earth, refers to the curvature of our planet. This means that when pilots or sailors plan their routes, they often choose a great circle course to minimize distance and save time.To better understand the significance of a great circle course, it is essential to recognize how it differs from a straight line on a flat map. On a two-dimensional map, the shortest distance between two points appears as a straight line. However, because the Earth is a three-dimensional sphere, the most efficient route actually follows the arc of a circle that divides the sphere into two equal halves. This circular path is what we refer to as a great circle course.One of the most famous examples of a great circle course is the route taken by many long-haul flights. For instance, a flight from New York to Tokyo does not travel in a straight line as it appears on a flat map. Instead, it follows a curved trajectory that represents a great circle course. This not only reduces fuel consumption but also shortens travel time, making it a more efficient option for airlines.The importance of understanding a great circle course extends beyond just aviation. In maritime navigation, ships also utilize this principle to chart their courses across the oceans. When navigating through the vast seas, sailors must account for the curvature of the Earth to determine the most efficient route. By following a great circle course, they can save both time and resources, which is vital for successful voyages.Moreover, the concept of a great circle course is not limited to transportation. It also has applications in various fields such as telecommunications and global positioning systems (GPS). For instance, satellites in orbit around the Earth utilize great circle courses to communicate effectively with ground stations. Understanding these paths allows engineers to design better systems that ensure seamless communication across vast distances.In conclusion, the great circle course is a fundamental concept in navigation that highlights the importance of understanding the Earth's geometry. Whether in aviation, maritime travel, or telecommunications, recognizing the significance of a great circle course allows us to optimize routes, conserve resources, and enhance efficiency. As we continue to explore our planet and beyond, the principles behind a great circle course will remain essential in guiding our journeys and innovations.

在我们星球的广阔空间中导航，需要理解与地理和导航相关的各种概念。其中一个概念是大圆航线，它在航空和海洋旅行中发挥着至关重要的作用。大圆航线被定义为在球体表面上两个点之间的最短路径，在地球的背景下，这指的是我们星球的曲率。这意味着当飞行员或水手规划他们的航线时，他们通常选择大圆航线以最小化距离并节省时间。为了更好地理解大圆航线的重要性，必须认识到它与平面地图上直线的区别。在二维地图上，两点之间的最短距离看起来是一条直线。然而，由于地球是一个三维球体，最有效的路线实际上遵循将球体分成两个相等部分的圆弧。这条圆形路径就是我们所称的大圆航线。一个著名的例子是许多长途航班所采取的大圆航线。例如，从纽约到东京的航班并不是沿着平面地图上看起来的直线飞行。相反，它遵循一个代表大圆航线的弯曲轨迹。这不仅减少了燃料消耗，还缩短了旅行时间，使其成为航空公司更高效的选择。理解大圆航线的重要性不仅限于航空。在海洋导航中，船只也利用这一原理来绘制穿越海洋的航线。当在辽阔的海洋中航行时，水手必须考虑地球的曲率，以确定最有效的航线。通过遵循大圆航线，他们可以节省时间和资源，这对成功的航行至关重要。此外，大圆航线的概念不限于运输。它在电信和全球定位系统（GPS）等多个领域也有应用。例如，绕地球轨道运行的卫星利用大圆航线与地面站进行有效通信。理解这些路径使工程师能够设计出更好的系统，确保跨越广阔距离的无缝通信。总之，大圆航线是导航中的一个基本概念，突显了理解地球几何的重要性。无论是在航空、海洋旅行还是电信中，认识到大圆航线的重要性使我们能够优化航线、节省资源并提高效率。随着我们继续探索我们的星球及其以外的地方，大圆航线背后的原理将继续在指导我们的旅程和创新中发挥重要作用。