dead-reckoning equipment

简明释义

航迹推算仪

英英释义

例句

1.The military uses advanced dead-reckoning equipment for strategic planning and operations.

军方使用先进的推算设备进行战略规划和行动。

2.In the absence of GPS, dead-reckoning equipment becomes essential for accurate navigation.

在没有GPS的情况下，推算设备对于准确导航变得至关重要。

3.Mariners often use dead-reckoning equipment to estimate their position when GPS signals are weak.

当GPS信号弱时，海员常常使用推算设备来估计他们的位置。

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

飞行员依靠推算设备在暴风雨中导航。

5.During the training exercise, soldiers practiced using dead-reckoning equipment to find their way in unfamiliar terrain.

在训练演习中，士兵们练习使用推算设备在不熟悉的地形中找到方向。

作文

In the age of advanced technology, navigation has become easier and more precise than ever before. However, there was a time when sailors and explorers relied heavily on their skills and basic tools to find their way across vast oceans and uncharted territories. One of the essential tools they used was dead-reckoning equipment, which played a crucial role in determining their position and course. Understanding this term not only highlights the ingenuity of early navigators but also emphasizes the evolution of navigation techniques over the years.Dead-reckoning equipment refers to the methods and instruments used to estimate a vessel's current position based on its last known location. This technique involves calculating the distance traveled over time and the direction of travel, taking into account factors such as speed, wind, and currents. While it may seem simple, dead-reckoning equipment requires a keen understanding of mathematics and the ability to make quick judgments under pressure.Historically, sailors would use tools like compasses, log lines, and sextants to assist in their navigation. The compass provided a reliable direction, while the log line helped determine the speed of the ship. By combining these measurements, sailors could estimate their position even when they were far from visible landmarks. Despite its limitations, such as the inability to account for unexpected changes in weather or currents, dead-reckoning equipment was a vital part of maritime navigation.As technology progressed, so did the methods of navigation. The introduction of GPS (Global Positioning System) revolutionized the field, allowing for real-time tracking of ships and aircraft. However, understanding the principles behind dead-reckoning equipment remains essential, especially in situations where GPS signals may be weak or unavailable. For instance, submarines often rely on dead-reckoning equipment when operating underwater, where satellite signals cannot penetrate.Moreover, the concept of dead-reckoning equipment extends beyond maritime navigation. Pilots use similar techniques in aviation, where they calculate their position based on their last known location and various flight parameters. In the world of robotics and autonomous vehicles, algorithms that mimic dead-reckoning equipment are employed to help machines navigate their environments accurately.In conclusion, dead-reckoning equipment is more than just a historical term; it represents a fundamental aspect of navigation that has shaped our understanding of movement and position. While modern technology has provided us with advanced tools, the principles of dead-reckoning equipment remain relevant today. As we continue to explore new frontiers, both on Earth and beyond, the legacy of these early navigational techniques will undoubtedly influence future innovations. Understanding dead-reckoning equipment allows us to appreciate the journey of navigation from its humble beginnings to the sophisticated systems we have today.

在先进技术的时代，导航变得比以往任何时候都更加简单和精确。然而，曾经有一段时间，水手和探险家们在广阔的海洋和未知的领土上寻找方向时，极度依赖他们的技能和基本工具。他们使用的基本工具之一是航位推算设备，它在确定他们的位置和航向方面发挥了至关重要的作用。理解这个术语不仅突显了早期航海者的聪明才智，也强调了导航技术多年来的演变。航位推算设备指的是用于根据最后已知位置估算船只当前位置的方法和仪器。这种技术涉及计算在一定时间内行驶的距离和行驶方向，同时考虑速度、风和洋流等因素。虽然这看起来很简单，但航位推算设备需要对数学有敏锐的理解，并能够在压力下迅速做出判断。在历史上，水手们会使用指南针、测深线和六分仪等工具来辅助导航。指南针提供了可靠的方向，而测深线则帮助确定船只的速度。通过结合这些测量，水手们即使在远离可见地标时也能估算他们的位置。尽管它有一些局限性，比如无法应对天气或洋流的意外变化，但航位推算设备仍然是海上导航的重要组成部分。随着科技的进步，导航方法也随之发展。全球定位系统（GPS）的引入彻底改变了这一领域，使船只和飞机能够实时跟踪。然而，理解航位推算设备背后的原理仍然至关重要，特别是在GPS信号可能较弱或不可用的情况下。例如，潜艇在水下作业时通常依赖于航位推算设备，因为卫星信号无法穿透水面。此外，航位推算设备的概念超越了海洋导航。飞行员在航空中使用类似的技术，根据最后已知位置和各种飞行参数计算他们的位置。在机器人和自动驾驶汽车的世界中，模仿航位推算设备的算法被用来帮助机器准确地导航其环境。总之，航位推算设备不仅仅是一个历史术语；它代表了导航的一个基本方面，塑造了我们对运动和位置的理解。虽然现代技术为我们提供了先进的工具，但航位推算设备的原理在今天仍然相关。当我们继续探索新的前沿，无论是在地球上还是在其他地方，这些早期导航技术的遗产无疑会影响未来的创新。理解航位推算设备使我们能够欣赏导航从其谦卑的起点到我们今天拥有的复杂系统的旅程。