great-circle sailing

简明释义

大圆航法

英英释义

例句

1.The pilot explained how great-circle sailing helps in reducing fuel consumption on long voyages.

飞行员解释了如何通过大圆航行来减少长途航行中的燃料消耗。

2.Using great-circle sailing, we were able to reach our destination faster than expected.

通过使用大圆航行，我们能够比预期更快地到达目的地。

3.Many modern ships employ great-circle sailing techniques for more efficient navigation.

许多现代船只采用大圆航行技术以实现更高效的导航。

4.When planning our route from New York to Tokyo, we decided to use great-circle sailing to minimize travel distance.

在规划我们从纽约到东京的航线时，我们决定使用大圆航行以最小化旅行距离。

5.The map showed the shortest path using great-circle sailing across the Pacific Ocean.

地图显示了通过太平洋进行大圆航行的最短路径。

作文

Sailing across the vast oceans has always been a challenge for navigators and sailors alike. One of the most important concepts in maritime navigation is great-circle sailing, which refers to the shortest path between two points on the surface of a sphere, such as the Earth. This method is crucial for long-distance sea voyages and has been used for centuries by explorers and commercial ships. Understanding great-circle sailing not only enhances the efficiency of travel but also showcases the beauty of mathematical principles in real-world applications.The Earth is not flat; it is a sphere. Therefore, when navigating from one point to another, a sailor must consider the curvature of the Earth. The traditional method of plotting a course on a flat map can lead to significant deviations from the shortest route. This is where great-circle sailing comes into play. By following a great circle, sailors can minimize the distance traveled and save time and fuel.To illustrate this concept, let’s consider a journey from New York City to Tokyo. If a sailor were to chart a straight line on a flat map, they would likely end up with a route that takes them far north, perhaps over Alaska and the Arctic. However, if they utilize great-circle sailing, they would find that the shortest route actually arcs slightly southward, passing over the Pacific Ocean. This not only shortens the distance but also reduces the potential for encountering severe weather conditions often found at higher latitudes.Moreover, great-circle sailing is not just limited to ocean navigation; it is also applicable in aviation. Airlines frequently use this method to optimize flight paths, which can lead to substantial savings in fuel costs and reduced travel times for passengers. For instance, flights from North America to Asia often take a route that appears curved on a flat map, but in reality, it is the most efficient path when considering the Earth’s spherical shape.However, navigating using great-circle sailing does come with its own set of challenges. For one, the calculation of the great circle route requires a good understanding of spherical trigonometry. Sailors must be adept at calculating angles and distances, which can be complex without modern technology. Additionally, while the great-circle route is the shortest distance, it may not always be the safest or most practical due to obstacles such as land masses, weather patterns, and maritime traffic.In conclusion, great-circle sailing is an essential technique in navigation that highlights the importance of understanding the Earth's geometry. It allows sailors and pilots to traverse vast distances more efficiently, making it a fundamental aspect of modern navigation. As we continue to explore our planet, embracing methods like great-circle sailing will ensure that we navigate our journeys with precision and purpose. The interplay of mathematics, geography, and technology in this practice exemplifies the wonders of human ingenuity and our quest for exploration.

航行于辽阔的海洋一直以来都是航海者和水手面临的挑战。海上导航中一个重要的概念是大圆航行，它指的是在球体表面上，两点之间的最短路径，比如地球。这种方法对长途海上航行至关重要，几个世纪以来，探险家和商业船只都在使用它。理解大圆航行不仅提高了旅行的效率，还展示了数学原理在现实世界中的美丽应用。地球不是平坦的；它是一个球体。因此，当从一个点导航到另一个点时，水手必须考虑地球的曲率。在平面地图上绘制航线的传统方法可能导致与最短路线的显著偏差。这就是大圆航行发挥作用的地方。通过沿着大圆航行，水手可以最小化行驶距离，从而节省时间和燃料。为了说明这个概念，让我们考虑从纽约市到东京的旅程。如果水手在平面地图上绘制一条直线，他们可能会发现航线远北，可能经过阿拉斯加和北极。然而，如果他们利用大圆航行，他们会发现最短的航线实际上略微向南弯曲，经过太平洋。这不仅缩短了距离，还减少了在高纬度地区常见的遭遇恶劣天气的可能性。此外，大圆航行不仅限于海洋导航；它在航空中也适用。航空公司经常使用这种方法来优化航线，这可以为燃料成本节省和乘客的旅行时间减少带来实质性的好处。例如，从北美到亚洲的航班通常采取看似在平面地图上弯曲的航线，但实际上这是在考虑地球的球形时最有效的路径。然而，使用大圆航行进行导航也有其自身的一系列挑战。首先，计算大圆航线需要对球面三角学有良好的理解。水手必须熟练计算角度和距离，这在没有现代技术的情况下可能会很复杂。此外，虽然大圆航线是最短的距离，但由于陆地、天气模式和海上交通等障碍，它并不总是最安全或最实用的。总之，大圆航行是导航中的一项基本技术，突显了理解地球几何的重要性。它使水手和飞行员能够更有效地跨越广阔的距离，使其成为现代导航的基本方面。随着我们继续探索我们的星球，拥抱像大圆航行这样的方法将确保我们以精确和目标导向的方式导航我们的旅程。这一实践中数学、地理和技术的相互作用体现了人类创造力的奇迹和我们探索的渴望。