true meridian

简明释义

真子午线

英英释义

例句

1.The map shows the true meridian lines clearly marked for reference.

地图上清楚地标出了真子午线的线路以供参考。

2.The true meridian differs from the magnetic meridian, which can lead to navigational errors.

与磁子午线不同，真子午线可能导致导航错误。

3.The surveyor used the true meridian to ensure accurate land measurements.

测量员使用真子午线来确保土地测量的准确性。

4.To align the telescope correctly, we must point it towards the true meridian.

为了正确对准望远镜，我们必须将其指向真子午线。

5.In navigation, understanding the true meridian is crucial for determining your exact position.

在导航中，理解真子午线对确定你的位置至关重要。

作文

In the realm of navigation and geography, understanding the concept of the true meridian is essential for accurate positioning and mapping. The true meridian, defined as the line that connects the geographic North and South Poles, represents the direction of true north at any given point on Earth. Unlike magnetic north, which can vary based on location and magnetic anomalies, the true meridian provides a consistent reference point for navigators and cartographers alike.When we delve deeper into the significance of the true meridian, we realize its implications extend beyond mere navigation. It plays a crucial role in various fields such as astronomy, surveying, and even in the development of global positioning systems (GPS). For astronomers, the true meridian serves as a reference for celestial observations, allowing them to accurately track the movement of stars and planets across the sky. In surveying, professionals rely on the true meridian to establish property boundaries and create accurate maps, ensuring that land disputes are minimized and construction projects are executed with precision.The importance of the true meridian can also be seen in the context of timekeeping. The concept of time zones is fundamentally linked to the true meridian. Each time zone is typically defined by its offset from Coordinated Universal Time (UTC), which is based on the position of the true meridian. As the Earth rotates, different regions experience daylight and darkness, leading to the establishment of time zones that reflect these variations. Without a clear understanding of the true meridian, coordinating activities across different regions would become increasingly complex and chaotic.Furthermore, the true meridian has historical significance. Early explorers relied heavily on this concept to chart their courses across uncharted waters. They used tools such as sextants to measure angles between celestial bodies and the horizon, which allowed them to determine their latitude and longitude relative to the true meridian. This knowledge was instrumental in the Age of Exploration, enabling navigators to discover new lands and establish trade routes that would shape the course of history.In modern times, the advent of technology has transformed how we utilize the true meridian. With the rise of GPS and other advanced navigation systems, the true meridian remains a foundational element in the algorithms that drive these technologies. While we may rely on digital devices for navigation today, the principles grounded in the true meridian continue to underpin our understanding of geography and spatial orientation.In conclusion, the true meridian is more than just a navigational term; it is a fundamental concept that intersects various disciplines, from astronomy to timekeeping. Its significance is woven into the fabric of our understanding of the world, highlighting the interconnectedness of geography, technology, and history. As we continue to explore and expand our horizons, the true meridian will undoubtedly remain a critical reference point guiding us through the complexities of our planet's geography.

在导航和地理的领域中，理解“true meridian”的概念对于准确定位和制图至关重要。“true meridian”被定义为连接地理北极和南极的线，表示地球上任何给定点的真北方向。与磁北不同，磁北会根据位置和磁异常而变化，而“true meridian”则为导航员和制图师提供了一致的参考点。当我们更深入地探讨“true meridian”的重要性时，我们意识到它的影响超越了简单的导航。它在天文学、测量甚至全球定位系统（GPS）的发展等多个领域发挥着关键作用。对于天文学家来说，“true meridian”作为天体观察的参考，使他们能够准确追踪星星和行星在天空中的运动。在测量中，专业人员依赖“true meridian”来确定财产边界并创建准确的地图，从而确保土地争议最小化，建设项目精确执行。“true meridian”的重要性还可以在时间计算的背景中看到。时区的概念与“true meridian”密切相关。每个时区通常由其与协调世界时（UTC）的偏移量定义，而后者又是基于“true meridian”的位置。随着地球的旋转，不同地区经历白天和黑夜，导致建立反映这些变化的时区。如果没有对“true meridian”的清晰理解，在不同地区协调活动将变得越来越复杂和混乱。此外，“true meridian”具有历史意义。早期探险者在未被探索的水域中航行时严重依赖这一概念。他们使用六分仪等工具测量天体与地平线之间的角度，从而确定相对于“true meridian”的纬度和经度。这些知识在探索时代至关重要，使导航员能够发现新土地并建立塑造历史进程的贸易路线。在现代，技术的出现改变了我们利用“true meridian”的方式。随着GPS和其他先进导航系统的兴起，“true meridian”仍然是驱动这些技术算法的基础元素。虽然我们今天可能依赖数字设备进行导航，但建立在“true meridian”之上的原则继续支撑着我们对地理和空间定位的理解。总之，“true meridian”不仅仅是一个导航术语；它是一个基本概念，交叉了多个学科，从天文学到时间计算。它的重要性编织在我们对世界的理解之中，突显了地理、技术和历史之间的相互联系。随着我们继续探索和扩展视野，“true meridian”无疑将继续成为指导我们穿越地球复杂性的关键参考点。