magnetic chart

简明释义

地磁图

英英释义

例句

1.We relied on the magnetic chart to find our way back to the harbor after the sun set.

我们依靠磁性图表在日落后找到返回港口的路。

2.The captain used the magnetic chart to navigate through the stormy seas.

船长使用磁性图表在暴风雨的海域中导航。

3.A magnetic chart is essential for any serious sailor planning a long voyage.

对于任何计划长途航行的认真水手来说，磁性图表是必不可少的。

4.During the training session, the instructor demonstrated how to read a magnetic chart for better sailing accuracy.

在培训课程中，讲师演示了如何读取磁性图表以提高航行准确性。

5.The magnetic chart showed several underwater hazards that we needed to avoid.

这张磁性图表显示了我们需要避免的几个水下危险。

作文

In the world of navigation and exploration, tools and techniques have evolved significantly over the years. One of the most fascinating tools that has emerged is the magnetic chart, a vital instrument used by sailors and aviators alike. A magnetic chart is essentially a representation of the Earth's magnetic field, which helps navigators determine their direction and position in relation to magnetic north. This chart is crucial for ensuring safe and accurate travel across oceans and skies.The concept of using magnetic fields for navigation dates back centuries. Early explorers relied on the stars and the sun for guidance, but as they ventured further into uncharted territories, they needed a more reliable method. The invention of the compass was a game-changer; however, the compass alone was not sufficient. It became apparent that understanding the Earth’s magnetic variations was essential. Thus, the magnetic chart was developed to provide detailed information about these variations.A typical magnetic chart displays various lines that indicate the strength and direction of the magnetic field at different locations. These lines are known as isogonic lines, which connect points of equal magnetic declination. Navigators use this information to adjust their course and ensure they are heading in the right direction. For instance, if a navigator knows the magnetic declination in a specific area, they can correct their compass reading accordingly, avoiding potential navigational errors.Moreover, the magnetic chart is not just useful for maritime navigation; it is also extensively used in aviation. Pilots rely on these charts to navigate through the skies, especially when flying over vast and featureless areas such as oceans or deserts. The magnetic chart helps them maintain their course and altitude, ensuring a safe journey from one destination to another.In addition to navigation, magnetic charts have applications in various scientific fields. Geologists, for instance, utilize these charts to study the Earth's magnetic properties and understand geological formations. By analyzing the magnetic anomalies indicated on the charts, scientists can gain insights into the composition of the Earth’s crust and the movements of tectonic plates.Furthermore, the advent of technology has transformed how we use magnetic charts. With the integration of GPS and digital mapping systems, navigators now have access to real-time data that enhances their navigation experience. Despite these advancements, the fundamental principles behind magnetic charts remain unchanged, emphasizing the importance of understanding magnetic fields in navigation.In conclusion, the magnetic chart is an indispensable tool in navigation and exploration. It serves as a guide for sailors and pilots, helping them traverse the vast expanses of oceans and skies safely. Its significance extends beyond navigation, impacting scientific research and our understanding of the Earth. As we continue to explore new frontiers, the magnetic chart will undoubtedly remain a vital component of our navigational toolkit, bridging the gap between ancient methods and modern technology.

在航海和探索的世界中，工具和技术多年来已经显著发展。其中一个最迷人的工具就是磁力图，这是水手和飞行员都必不可少的仪器。磁力图本质上是地球磁场的表示，帮助导航员确定他们相对于磁北的方向和位置。这张图对于确保跨越海洋和天空的安全和准确旅行至关重要。利用磁场进行导航的概念可以追溯到几个世纪以前。早期的探险者依靠星星和太阳来指引方向，但随着他们深入未知领域，他们需要一种更可靠的方法。指南针的发明改变了游戏；然而，单靠指南针并不足够。人们逐渐意识到，了解地球的磁性变化是至关重要的。因此，磁力图被开发出来，以提供有关这些变化的详细信息。典型的磁力图显示出各种线条，指示不同位置的磁场强度和方向。这些线被称为等磁偏线，连接着具有相同磁偏角的点。导航员利用这些信息来调整他们的航向，确保他们朝着正确的方向前进。例如，如果导航员知道特定区域的磁偏角，他们可以相应地修正他们的指南针读数，从而避免潜在的导航错误。此外，磁力图不仅对海洋导航有用，在航空中也被广泛使用。飞行员依赖这些图表在空中导航，特别是在飞越广阔且缺乏特征的区域，如海洋或沙漠时。磁力图帮助他们保持航向和高度，确保从一个目的地安全抵达另一个目的地。除了导航，磁力图在各个科学领域也有应用。例如，地质学家利用这些图表研究地球的磁性特性，了解地质构造。通过分析图表上的磁异常，科学家可以深入了解地壳的组成和板块的运动。此外，科技的出现改变了我们使用磁力图的方式。随着GPS和数字地图系统的整合，导航员现在可以访问实时数据，增强他们的导航体验。尽管这些进步，磁力图背后的基本原理仍然没有改变，这强调了理解磁场在导航中的重要性。总之，磁力图是导航和探索中不可或缺的工具。它为水手和飞行员提供了指引，帮助他们安全地穿越海洋和天空的广阔空间。它的重要性超越了导航，影响了科学研究和我们对地球的理解。随着我们继续探索新的前沿，磁力图无疑将继续作为我们导航工具箱中的重要组成部分，架起古老方法与现代技术之间的桥梁。