dead reckoning equipment

简明释义

航迹记录器

英英释义

例句

1.Modern ships often use GPS, but some still carry dead reckoning equipment for backup.

现代船只通常使用GPS，但有些仍然携带航位推算设备作为备份。

2.The dead reckoning equipment helped the submarine navigate underwater without being detected.

这套航位推算设备帮助潜艇在水下导航而不被发现。

3.During training exercises, cadets were taught how to use dead reckoning equipment effectively.

在训练演习中，学员们被教导如何有效使用航位推算设备。

4.The pilot relied on dead reckoning equipment to navigate through the stormy weather.

飞行员依靠航位推算设备在暴风雨中导航。

5.In the absence of satellite signals, the crew turned to their dead reckoning equipment to find their position.

在缺乏卫星信号的情况下，船员们转而使用他们的航位推算设备来确定位置。

作文

In the world of navigation, the term dead reckoning equipment refers to a set of tools and techniques used to estimate one's current position based on a previously determined location. This method is crucial for pilots, mariners, and drivers who often find themselves in situations where GPS signals are weak or entirely unavailable. The concept of dead reckoning dates back to ancient maritime practices, where navigators would calculate their course based on speed, time, and direction traveled from a known point. Today, while technology has advanced significantly, the principles behind dead reckoning equipment remain relevant and essential for various forms of transportation.The primary advantage of using dead reckoning equipment is that it allows for continuous navigation without reliance on external signals. For instance, in areas where GPS signals may be obstructed by mountains or dense urban environments, pilots and sailors can still maintain an accurate sense of their location. This is achieved by recording the speed of the vessel or aircraft, the heading, and the elapsed time since the last known position was established. By applying these factors, navigators can plot their current position on a chart, ensuring they stay on course regardless of external conditions.Despite its advantages, dead reckoning equipment does have some limitations. One major drawback is that it relies heavily on accurate measurements and assumptions. If a navigator miscalculates their speed or direction, even slightly, it can lead to significant errors over time. This is particularly concerning during long journeys where small discrepancies can accumulate, resulting in being far off course. Therefore, navigators must regularly update their position using landmarks, celestial navigation, or other means to correct any potential errors that arise from dead reckoning.Moreover, the effectiveness of dead reckoning equipment can also be impacted by environmental factors. For example, strong currents in the ocean or winds in the air can alter the intended path of a vessel or aircraft, leading to inaccuracies in the estimated position. Navigators must therefore be skilled in adjusting their calculations to account for these variables, which requires experience and a deep understanding of the natural elements at play.In modern times, while many rely on electronic systems for navigation, the fundamentals of dead reckoning equipment are still taught in aviation and maritime training programs. This ensures that future generations of navigators are equipped with the knowledge to navigate effectively, even when technology fails. The ability to perform dead reckoning calculations is considered a critical skill, as it fosters a deeper understanding of navigation principles and enhances overall situational awareness.In conclusion, dead reckoning equipment plays a vital role in navigation, providing a reliable means of estimating one's position when traditional signals are unavailable. While there are challenges associated with its use, the principles of dead reckoning remain integral to the art of navigation. As we continue to advance technologically, it is essential to remember the importance of these foundational skills, ensuring that navigators can adapt to any situation they encounter on their journeys.

在导航领域，术语死算设备指的是一套用于根据先前确定的位置估算当前位置的工具和技术。这种方法对于飞行员、航海者和驾驶员至关重要，他们常常面临GPS信号弱或完全不可用的情况。死算的概念可以追溯到古代海洋实践，导航员会根据速度、时间和从已知点出发的行驶方向来计算航程。今天，尽管技术已显著进步，但死算设备背后的原则仍然相关并对各种交通运输形式至关重要。使用死算设备的主要优点是，它允许在不依赖外部信号的情况下进行持续导航。例如，在GPS信号可能被山脉或密集城市环境阻挡的地区，飞行员和水手仍然可以保持准确的位置感。这是通过记录船只或飞机的速度、航向以及自上一个已知位置以来经过的时间来实现的。通过应用这些因素，导航员可以在图表上绘制当前位置，确保他们无论外部条件如何都能保持在正确的航线上。尽管有其优势，死算设备也存在一些局限性。一个主要缺点是它在很大程度上依赖于准确的测量和假设。如果导航员稍微计算错误了速度或方向，随着时间的推移，这可能导致重大误差。这在长途旅行中尤其令人担忧，因为小的偏差可能会累积，导致偏离航线。因此，导航员必须定期使用地标、天文导航或其他方式更新他们的位置，以纠正任何因死算而产生的潜在错误。此外，环境因素也可能影响死算设备的有效性。例如，海洋中的强流或空气中的风可能会改变船只或飞机的预期航线，从而导致估计位置的不准确。因此，导航员必须具备根据这些变量调整计算的技能，这需要经验和对自然元素的深刻理解。在现代，尽管许多人依赖电子系统进行导航，死算设备的基本知识仍然在航空和海事培训项目中教授。这确保了未来的导航员具备在技术失效时有效导航的知识。能够执行死算计算被视为一项关键技能，因为它促进了对导航原理的更深入理解，并增强了整体的情境意识。总之，死算设备在导航中发挥着至关重要的作用，为在传统信号不可用时估算位置提供了一种可靠的方法。尽管使用中存在挑战，但死算的原则仍然是导航艺术的重要组成部分。随着我们继续在技术上取得进步，记住这些基础技能的重要性至关重要，以确保导航员能够适应他们在旅途中遇到的任何情况。