compass declination

简明释义

罗经磁偏

英英释义

例句

1.To find true north, you must subtract the compass declination 罗盘偏差 from your magnetic reading.

要找到真北，你必须从磁读数中减去罗盘偏差 compass declination。

2.Before heading out on your hike, make sure to adjust for compass declination 罗盘偏差 to ensure accurate navigation.

在出发徒步旅行之前，确保调整罗盘偏差 compass declination以确保导航准确。

3.You can find the local compass declination 罗盘偏差 information on various online mapping services.

你可以在各种在线地图服务上找到当地的罗盘偏差 compass declination信息。

4.The compass declination 罗盘偏差 in this area is about 10 degrees east, so be sure to account for that.

该地区的罗盘偏差 compass declination大约为10度东，因此一定要考虑到这一点。

5.In coastal regions, the compass declination 罗盘偏差 can vary significantly due to geological factors.

在沿海地区，罗盘偏差 compass declination可能因地质因素而显著变化。

作文

Understanding navigation is crucial for anyone who wishes to explore the great outdoors. One of the essential tools in navigation is the compass, which has been used for centuries to help people find their way. However, a common challenge that navigators face is the concept of compass declination, which refers to the angle between magnetic north and true north. This angle can vary depending on where you are on the Earth's surface and can significantly impact your navigation accuracy.When using a compass, it is important to understand that the needle points toward magnetic north, not true north. Magnetic north is the direction that the north end of a compass needle points to, while true north is the direction along the Earth's surface towards the geographic North Pole. The difference between these two directions is what we call compass declination (磁针偏角). This declination can be either east or west, depending on your location.For example, if you are in an area where the compass declination is 10 degrees east, it means that magnetic north is 10 degrees to the east of true north. In this case, if you want to travel due north, you would need to adjust your compass reading by subtracting 10 degrees. Conversely, if you are in a region with a compass declination of 5 degrees west, you would need to add 5 degrees to your compass reading to account for the difference.The compass declination is not a fixed value; it changes over time due to shifts in the Earth's magnetic field. Therefore, it is essential for navigators to check the current declination for their specific location, which can often be found on topographic maps or through online resources. This knowledge is particularly important for hikers, sailors, and pilots who rely heavily on accurate navigation to ensure their safety and success.In addition, understanding compass declination helps in various applications beyond just outdoor navigation. For instance, in geology, researchers may need to account for magnetic declination when studying rock formations and their historical magnetic orientations. Similarly, in the field of archaeology, knowing the compass declination can aid in accurately locating artifacts and understanding ancient human behavior related to navigation.In conclusion, mastering the concept of compass declination is vital for effective navigation and various scientific applications. Whether you are hiking in the wilderness, sailing across the ocean, or conducting research in geology or archaeology, being aware of this phenomenon will enhance your navigation skills and ensure that you reach your destination accurately. Always remember to check the local declination and make the necessary adjustments to your compass readings to navigate confidently and safely.

理解导航对任何希望探索大自然的人来说都是至关重要的。指南针是导航中必不可少的工具之一，几个世纪以来，它帮助人们找到方向。然而，导航员面临的一个常见挑战是磁针偏角的概念，它指的是磁北与真北之间的角度。这个角度可能会根据你在地球表面的具体位置而变化，并且可以显著影响你的导航准确性。使用指南针时，重要的是要理解，针指向的是磁北，而不是直北。磁北是指南针针头指向的方向，而真北是沿着地球表面朝向地理北极的方向。两者之间的差异就是我们所称的磁针偏角（compass declination）。这个偏角可以是东偏或西偏，取决于你的位置。例如，如果你在一个磁针偏角为10度东的地区，这意味着磁北比真北偏东10度。在这种情况下，如果你想朝正北方向旅行，你需要将指南针读数减去10度。相反，如果你在一个磁针偏角为5度西的区域，你需要在指南针读数上加上5度，以考虑这一差异。磁针偏角并不是一个固定值；由于地球磁场的变化，它会随着时间而改变。因此，导航员必须检查特定位置的当前偏角，这通常可以在地形图上找到或通过在线资源获取。对于依赖准确导航确保安全和成功的远足者、航海者和飞行员来说，这一知识尤为重要。此外，理解磁针偏角还有助于各种应用，超越单纯的户外导航。例如，在地质学中，研究人员可能需要在研究岩石形成及其历史磁性方向时考虑磁偏角。同样，在考古学领域，了解磁针偏角可以帮助准确定位文物，并理解与导航相关的古代人类行为。总之，掌握磁针偏角的概念对于有效的导航和各种科学应用至关重要。无论你是在荒野中远足、穿越海洋航行，还是进行地质或考古研究，意识到这一现象将增强你的导航技能，并确保你准确到达目的地。始终记得检查当地的偏角，并对你的指南针读数做出必要的调整，以自信和安全地导航。