dead reckoning plot

简明释义

航迹推算作图

英英释义

例句

1.The captain used a dead reckoning plot to navigate through the foggy waters.

船长使用航位推算图在雾蒙蒙的水域中航行。

2.The team used a dead reckoning plot to track their progress during the expedition.

团队使用航位推算图来跟踪他们在探险中的进展。

3.A dead reckoning plot can help determine your position when landmarks are not visible.

当地标不可见时，航位推算图可以帮助确定您的位置。

4.In aviation, pilots often rely on a dead reckoning plot when GPS signals are weak.

在航空中，当GPS信号较弱时，飞行员通常依赖于航位推算图。

5.The sailor updated the dead reckoning plot every hour to ensure accurate navigation.

水手每小时更新一次航位推算图以确保导航准确。

作文

In the realms of navigation and maritime travel, the term dead reckoning plot holds significant importance. It refers to a method used to estimate one's current position based on a previously determined location, taking into account the speed, direction, and time traveled from that point. This technique has been utilized for centuries by sailors and aviators alike, serving as a fundamental skill in the art of navigation.The concept of dead reckoning plot is rooted in the need for reliable navigation methods before the advent of modern technology such as GPS. In earlier times, navigators would rely on celestial bodies, landmarks, and even currents to guide their journeys. However, these methods often proved to be unreliable due to changing weather conditions or unforeseen obstacles. Thus, the development of the dead reckoning plot became a crucial advancement in ensuring safer and more accurate navigation.To create a dead reckoning plot, navigators start with a known position, often referred to as the 'fix.' From this point, they calculate their course and speed over a specified period, allowing them to project their current position on a chart. This process involves drawing lines on a nautical chart, indicating the direction traveled and the distance covered. By continuously updating this plot, navigators can maintain an accurate sense of their location, even when visibility is poor or when electronic navigation aids fail.One of the key advantages of using a dead reckoning plot is its simplicity and independence from external factors. Unlike satellite-based systems that can be affected by signal loss or interference, the dead reckoning plot relies solely on the navigator's calculations. This self-sufficiency is particularly valuable in remote areas where technological support is limited. Furthermore, it fosters a deeper understanding of navigation principles, encouraging navigators to develop their skills and intuition.However, the dead reckoning plot is not without its limitations. The accuracy of this method diminishes over time, especially if the navigator encounters unexpected changes in speed, direction, or environmental conditions. Drift caused by currents or winds can lead to significant errors in the plotted position. Therefore, it is essential for navigators to periodically verify their position using other methods, such as visual sightings or celestial navigation, to ensure their dead reckoning plot remains accurate.In conclusion, the dead reckoning plot is a vital tool in the navigator's arsenal, representing a blend of traditional skills and practical knowledge. As we continue to rely on advanced technologies for navigation, it is crucial to remember the value of fundamental techniques like the dead reckoning plot. By mastering this method, navigators can enhance their confidence and competence, ensuring safe passage across the world's oceans and skies. Ultimately, the dead reckoning plot serves as a reminder of the enduring principles of navigation that have guided explorers for generations, emphasizing the importance of understanding one’s position in the vastness of our planet.

在导航和海洋旅行的领域中，术语死算图具有重要意义。它指的是一种基于先前确定的位置，通过考虑速度、方向和从该点出发的行驶时间来估计当前位置的方法。这种技术已被水手和飞行员使用了几个世纪，成为导航艺术中的基本技能。死算图的概念源于对可靠导航方法的需求，在现代技术如GPS出现之前。在早期，导航员依靠天体、地标甚至水流来指导他们的旅程。然而，由于天气条件变化或不可预见的障碍，这些方法往往不可靠。因此，死算图的发展成为确保更安全、更准确导航的关键进展。要创建死算图，导航员从已知位置开始，通常称为“固定点”。从这一点出发，他们计算在特定时间内的航向和速度，从而在图表上预测当前位置。这个过程涉及在海图上绘制线条，表示行驶方向和覆盖距离。通过不断更新这一图，导航员可以保持对其位置的准确感，即使在能见度差或电子导航辅助设备失效的情况下。使用死算图的一个主要优点是它的简单性和对外部因素的独立性。与可能受到信号丢失或干扰影响的基于卫星的系统不同，死算图完全依赖于导航员的计算。这种自给自足在技术支持有限的偏远地区尤为宝贵。此外，它促进了对导航原理的更深入理解，鼓励导航员发展自己的技能和直觉。然而，死算图并非没有局限性。这种方法的准确性随着时间的推移而降低，尤其是在导航员遇到意外的速度、方向或环境条件变化时。由于洋流或风的漂移，绘制位置可能会出现显著误差。因此，导航员必须定期使用其他方法（如目视观测或天文导航）来验证其位置，以确保其死算图保持准确。总之，死算图是导航员工具箱中的重要工具，代表了传统技能与实用知识的结合。随着我们继续依赖先进技术进行导航，重要的是要记住像死算图这样的基本技术的价值。通过掌握这种方法，导航员可以增强他们的信心和能力，确保在世界的海洋和天空中安全通行。最终，死算图提醒我们导航的持久原则，这些原则引导了几代探险者，强调了在我们星球广阔空间中理解自己位置的重要性。