magnetic compass table

简明释义

磁罗经自差表

英英释义

例句

1.In navigation, using a magnetic compass table helps in understanding the variation of magnetic declination.

在导航中，使用磁罗盘表有助于理解磁偏角的变化。

2.During the training session, the instructor explained how to read the magnetic compass table effectively.

在培训课程中，讲师解释了如何有效地读取磁罗盘表。

3.The magnetic compass table indicated that the true north was slightly off from the magnetic north.

这张磁罗盘表显示真北与磁北略有偏差。

4.Before starting the journey, the captain referred to the magnetic compass table for precise bearings.

在开始旅程之前，船长参考了磁罗盘表以获取精确的方位。

5.The sailor checked the magnetic compass table to adjust his course accurately.

水手查看了磁罗盘表以准确调整航向。

作文

Navigating through the vastness of the ocean has always been a challenge for sailors. One of the most important tools that have aided in this endeavor is the compass. Among various types of compasses, the magnetic compass table plays a crucial role in maritime navigation. This instrument allows sailors to determine their heading relative to the Earth's magnetic field. Understanding how to use a magnetic compass table effectively can mean the difference between safe passage and getting lost at sea.A magnetic compass table is essentially a chart that provides data on the magnetic variation and deviation for a specific location. Magnetic variation, also known as declination, is the angle between magnetic north and true north. This angle can vary significantly depending on where you are on the Earth’s surface. The magnetic compass table helps sailors adjust their compass readings accordingly, ensuring they are navigating accurately.The importance of using a magnetic compass table cannot be overstated. For instance, when a sailor sets out on a journey, they must first understand the local magnetic variation by consulting the magnetic compass table. This table will indicate how many degrees to adjust their compass reading to account for the difference between magnetic north and true north. Without this adjustment, a sailor could easily veer off course, leading to potential dangers such as running aground or colliding with other vessels.Moreover, the magnetic compass table also accounts for magnetic deviation, which occurs due to local magnetic influences, such as metal objects on the ship. By factoring in both variation and deviation, sailors can ensure that their navigational practices are precise. This level of accuracy is especially vital in busy shipping lanes or treacherous waters where even minor errors can have serious consequences.In addition to its practical applications, the magnetic compass table serves as a reminder of the fundamental principles of navigation. It highlights the relationship between the Earth’s magnetic field and our ability to traverse it. As technology advances, some may wonder if traditional tools like the magnetic compass table will become obsolete. However, while GPS and other digital navigation aids are invaluable, they can fail, particularly in adverse weather conditions or remote areas. Thus, understanding how to utilize a magnetic compass table remains an essential skill for all sailors.In conclusion, the magnetic compass table is more than just a tool; it is a vital component of safe navigation at sea. By providing critical information about magnetic variation and deviation, it helps sailors maintain their course and avoid perilous situations. As we continue to explore the oceans and rely on advanced technologies, we must not forget the importance of traditional navigation methods, including the invaluable magnetic compass table. It embodies the spirit of exploration and the quest for knowledge, reminding us that even in our modern age, the wisdom of the past still holds great value.

在浩瀚的海洋中航行一直是水手面临的挑战之一。其中一个重要的工具就是指南针。在各种类型的指南针中，磁罗盘表在海上导航中发挥着至关重要的作用。这种仪器使水手能够相对于地球的磁场确定他们的航向。有效理解如何使用磁罗盘表可能意味着安全通行与迷失在海洋之间的区别。磁罗盘表本质上是一张提供特定位置磁偏差和偏移数据的图表。磁偏差，也称为偏角，是磁北与真北之间的角度。这个角度在地球表面的不同位置可能会有显著变化。磁罗盘表帮助水手相应地调整他们的指南针读数，确保他们的导航准确。使用磁罗盘表的重要性不容小觑。例如，当水手开始一段旅程时，他们必须首先通过查阅磁罗盘表了解当地的磁偏差。这个表将指示他们需要调整多少度，以考虑磁北与真北之间的差异。如果没有这种调整，水手可能会轻易偏离航向，从而导致潜在的危险，比如搁浅或与其他船只相撞。此外，磁罗盘表还考虑了磁偏移，这种偏移是由于船上的金属物体等局部磁性影响所造成的。通过同时考虑偏差和偏移，水手可以确保他们的导航实践是精确的。在繁忙的航道或危险的水域中，这种准确度尤其重要，因为即使是微小的错误也可能带来严重后果。除了其实际应用外，磁罗盘表也提醒我们导航的基本原理。它突显了地球磁场与我们穿越它的能力之间的关系。随着技术的发展，有些人可能会想，像磁罗盘表这样的传统工具是否会变得过时。然而，尽管GPS和其他数字导航辅助工具非常宝贵，但它们可能会失败，特别是在恶劣天气条件或偏远地区。因此，了解如何利用磁罗盘表仍然是所有水手必备的技能。总之，磁罗盘表不仅仅是一个工具；它是安全航行的重要组成部分。通过提供有关磁偏差和偏移的关键信息，它帮助水手保持航向，避免危险情况。随着我们继续探索海洋并依赖先进技术，我们必须不忘传统导航方法的重要性，包括不可或缺的磁罗盘表。它体现了探索的精神和对知识的追求，提醒我们即使在现代时代，过去的智慧仍然具有重要价值。