compass variation

简明释义

罗经磁差

英英释义

例句

1.Sailors must adjust their charts for compass variation (罗盘偏差) before embarking on a long voyage.

水手在开始长途航行之前，必须调整他们的航海图以考虑compass variation（罗盘偏差）。

2.The pilot explained that compass variation (罗盘偏差) can lead to navigational errors if not properly accounted for.

飞行员解释说，如果不正确考虑，compass variation（罗盘偏差）可能导致导航错误。

3.In mountainous regions, compass variation (罗盘偏差) can be more pronounced due to magnetic anomalies.

在山区，由于磁异常，compass variation（罗盘偏差）可能更为明显。

4.Before starting our hike, we checked the local maps for compass variation (罗盘偏差) adjustments.

在开始徒步旅行之前，我们检查了当地地图以进行compass variation（罗盘偏差）的调整。

5.When navigating through the dense forest, it's important to account for compass variation (罗盘偏差) to ensure accurate heading.

在密林中导航时，考虑到compass variation（罗盘偏差）是确保准确航向的重要因素。

作文

In the world of navigation, the term compass variation refers to the angle between magnetic north and true north. This phenomenon is crucial for sailors, pilots, and anyone who relies on a compass for navigation. Understanding compass variation is essential because it helps navigators correct their compass readings to ensure accurate travel in the desired direction. Without this knowledge, one could easily be misled by the magnetic forces at play. The earth's magnetic field is not uniform; it varies in strength and direction depending on geographical location. As a result, the difference between true north (the direction along the earth's surface towards the geographic North Pole) and magnetic north (the direction a magnetic compass points) can lead to significant navigational errors if not accounted for. This discrepancy is what we call compass variation, which can change over time and must be regularly updated in navigational charts.For instance, when planning a sailing route, a navigator must first determine the compass variation for their starting point. They would consult updated navigational maps that provide information on the current variation in degrees. If the variation is, say, 10 degrees east, the navigator would need to adjust their compass reading accordingly. This adjustment ensures that they are heading in the right direction, despite the magnetic pull of the earth.The importance of understanding compass variation extends beyond just sailing. In aviation, pilots also rely on accurate compass readings to navigate through the skies. A pilot flying from one airport to another must take into account the compass variation to ensure they reach their destination safely. This is particularly important in areas where the variation is significant, as even a small error can lead to large deviations over long distances.Moreover, compass variation is not static; it changes due to various factors such as geological activity and shifts in the earth's magnetic field. Therefore, navigators must stay informed about these changes to maintain accuracy in their navigation. Many modern navigation systems now incorporate technology that automatically adjusts for compass variation, but understanding the underlying principles remains essential for those who may find themselves in situations without technological assistance.In conclusion, the concept of compass variation is vital for anyone involved in navigation, whether on land, sea, or air. It highlights the importance of understanding the natural forces at play in our environment and how they affect our ability to find our way. By grasping this concept, navigators can make informed decisions and adjustments, ensuring safe and accurate travel. The knowledge of compass variation not only enhances one’s navigational skills but also deepens the appreciation for the complexities of the earth’s magnetic field and its influence on our journeys.

在导航的世界中，术语罗盘偏差指的是磁北与真北之间的角度。这种现象对水手、飞行员以及任何依赖罗盘进行导航的人来说都是至关重要的。理解罗盘偏差是必不可少的，因为它帮助导航员校正他们的罗盘读数，以确保在所需方向上的准确旅行。如果没有这一知识，人们可能会被地球的磁力误导。地球的磁场并不均匀；它的强度和方向因地理位置而异。因此，真北（沿地表朝向地理北极的方向）与磁北（磁罗盘指向的方向）之间的差异如果不加以考虑，可能会导致显著的导航错误。这种差异就是我们所称的罗盘偏差，它会随着时间而变化，必须在导航图中定期更新。例如，在规划航行路线时，导航员首先必须确定起点的罗盘偏差。他们会查阅提供当前偏差信息的更新导航地图。如果偏差为10度东，导航员需要相应地调整他们的罗盘读数。这一调整确保他们朝着正确的方向前进，尽管受到地球的磁力影响。理解罗盘偏差的重要性不仅限于航海。在航空领域，飞行员也依赖准确的罗盘读数在空中导航。从一个机场飞往另一个机场的飞行员必须考虑罗盘偏差以确保安全抵达目的地。这在偏差较大的地区尤为重要，因为即使是小错误在长距离飞行中也会导致巨大偏差。此外，罗盘偏差并不是静态的；它会因地质活动和地球磁场的变化而改变。因此，导航员必须随时了解这些变化，以保持导航的准确性。许多现代导航系统现在采用技术，自动调整罗盘偏差，但理解基本原理对于那些可能面临没有技术支持的情况的人来说仍然至关重要。总之，罗盘偏差的概念对任何参与导航的人来说都是至关重要的，无论是在陆地、海洋还是空中。它突显了理解我们环境中自然力量的重要性，以及它们如何影响我们找到方向的能力。通过掌握这一概念，导航员可以做出明智的决策和调整，从而确保安全和准确的旅行。对罗盘偏差的知识不仅增强了个人的导航技能，还加深了对地球磁场复杂性的欣赏及其对我们旅程的影响。