dead-reckoning sailing

简明释义

船位推算航行

英英释义

例句

1.The use of dead-reckoning sailing dates back centuries and is still taught in maritime schools today.

使用推算航行的历史可以追溯到几个世纪前，至今仍在海事学校教授。

2.During the storm, the crew had to trust their skills in dead-reckoning sailing to reach safety.

在暴风雨中，船员们不得不相信他们在推算航行方面的技能，以达到安全地点。

3.Using a compass and charts, the navigator practiced dead-reckoning sailing to maintain their course.

使用指南针和海图，导航员练习推算航行以保持航向。

4.In the absence of GPS, the captain relied on dead-reckoning sailing to navigate through the fog.

在没有GPS的情况下，船长依靠推算航行在雾中导航。

5.Understanding dead-reckoning sailing is crucial for sailors who often find themselves in remote areas.

理解推算航行对经常身处偏远地区的水手来说至关重要。

作文

Dead-reckoning sailing has been a fundamental practice in navigation for centuries. This method involves calculating one's current position by using a previously determined position and estimating the distance traveled over time, taking into account factors such as speed and direction. It is particularly crucial when navigating through open waters where landmarks are not available. The term itself, dead-reckoning sailing, derives from the phrase 'deduced reckoning,' which reflects the process of deducing one's location based on prior data rather than relying on direct observation. In the age of advanced technology, one might wonder why sailors still employ dead-reckoning sailing. The answer lies in its reliability and simplicity. Even with modern GPS systems, understanding the principles of dead-reckoning sailing is essential for any navigator. GPS can fail due to various reasons, including signal loss or equipment malfunction. In such cases, having the knowledge of dead-reckoning sailing can be invaluable, allowing sailors to maintain their course and avoid dangerous situations.The process of dead-reckoning sailing begins with determining an initial position, which can be acquired through celestial navigation, landmarks, or electronic devices. From this point, navigators must keep track of their speed and heading. For instance, if a sailor travels at a speed of five knots for two hours on a heading of 90 degrees, they can calculate their new position by considering the distance covered (10 nautical miles) and adjusting their original coordinates accordingly. This calculation requires careful attention to detail and a good understanding of maritime charts.One of the challenges faced in dead-reckoning sailing is accounting for external factors that can affect a vessel's path. Wind, currents, and weather conditions can all influence a ship's actual trajectory. Therefore, navigators must continuously adjust their calculations and be prepared to update their estimated position. This dynamic aspect of dead-reckoning sailing makes it both an art and a science, requiring skill, experience, and intuition.Moreover, dead-reckoning sailing is not just limited to sailors; aviators and even drivers can apply similar principles in their respective fields. For example, pilots use dead reckoning to estimate their position during flights, especially when flying over long distances without visual references. Similarly, drivers may rely on a combination of known routes and estimated travel times to navigate unfamiliar areas.In conclusion, dead-reckoning sailing remains a vital skill in the world of navigation. Its principles are foundational, providing a framework upon which more advanced techniques can be built. As technology continues to evolve, the importance of traditional navigation methods like dead-reckoning sailing should not be underestimated. Understanding these methods not only enhances a navigator's skills but also serves as a reminder of the rich history and evolution of maritime exploration. Whether on a small boat or a large ship, the ability to navigate using dead-reckoning sailing ensures that sailors can confidently traverse the vast oceans, even when modern technology fails them.

推算航行（dead-reckoning sailing）是数百年来导航的基本实践。这种方法涉及通过使用先前确定的位置并估算经过时间内的行驶距离来计算当前位置，同时考虑速度和方向等因素。当在没有地标的开放水域航行时，这一点尤为重要。该术语本身来源于“推导推算”（'deduced reckoning'），反映了基于先前数据推导位置的过程，而不是依赖于直接观察。在先进技术的时代，人们可能会想知道为什么水手仍然使用dead-reckoning sailing。答案在于它的可靠性和简单性。即使拥有现代GPS系统，理解dead-reckoning sailing的原则对任何导航员来说都是至关重要的。GPS可能由于各种原因而失效，包括信号丢失或设备故障。在这种情况下，掌握dead-reckoning sailing的知识可能是无价的，使水手能够保持航向，避免危险情况。dead-reckoning sailing的过程始于确定初始位置，这可以通过天文导航、地标或电子设备获得。从这一点开始，导航员必须跟踪他们的速度和航向。例如，如果一名水手以每小时五节的速度沿着90度的航向航行两个小时，他们可以通过考虑所覆盖的距离（10海里）并相应调整其原始坐标来计算新的位置。这一计算需要对细节的仔细关注以及对海图的良好理解。在dead-reckoning sailing中面临的挑战之一是考虑可能影响船只航线的外部因素。风、洋流和天气条件都可能影响船只的实际轨迹。因此，导航员必须不断调整他们的计算，并准备更新他们的估计位置。这种动态特性使得dead-reckoning sailing既是一门艺术，也是一门科学，要求技能、经验和直觉。此外，dead-reckoning sailing不仅限于水手；飞行员甚至司机也可以在各自领域应用类似的原则。例如，飞行员在飞行过程中使用推算航行来估算他们的位置，特别是在长途飞行中没有视觉参考的情况下。同样，司机可能依赖已知的路线和估计的旅行时间在不熟悉的地区导航。总之，dead-reckoning sailing仍然是导航世界中的一项重要技能。它的原则是基础，为更先进的技术提供了框架。随着技术的不断发展，传统导航方法如dead-reckoning sailing的重要性不应被低估。理解这些方法不仅增强了导航员的技能，也提醒我们海洋探索丰富的历史和演变。无论是在小船上还是在大船上，使用dead-reckoning sailing进行导航的能力确保水手们能够自信地穿越广阔的海洋，即使现代技术让他们失望。