line declination

简明释义

等磁偏线

英英释义

例句

1.The local geological survey provides information on line declination 磁偏角 for various regions.

当地地质调查提供有关各个地区的line declination 磁偏角 信息。

2.In navigation, understanding the line declination 磁偏角 is crucial for accurate compass readings.

在导航中，理解line declination 磁偏角 对于准确的罗盘读数至关重要。

3.When plotting a course, pilots must account for line declination 磁偏角 to ensure they stay on track.

在绘制航线时，飞行员必须考虑line declination 磁偏角 以确保他们保持在正确的轨道上。

4.The line declination 磁偏角 can vary based on your geographic location.

根据你的地理位置，line declination 磁偏角 可能会有所不同。

5.Surveyors often measure line declination 磁偏角 to ensure the accuracy of their land assessments.

测量师通常测量line declination 磁偏角 以确保他们土地评估的准确性。

作文

In the field of geography and navigation, understanding the concept of line declination is crucial for accurate map reading and orientation. Line declination refers to the angle between magnetic north and true north, which can vary depending on your geographical location. This discrepancy arises because the Earth's magnetic field is not aligned perfectly with its rotational axis. As a result, navigators must account for line declination when using a compass to ensure they are heading in the correct direction.For instance, if you are in an area where the line declination is 10 degrees east, it means that when your compass points to magnetic north, you are actually 10 degrees off from true north. This can lead to significant errors if not corrected, especially in activities such as hiking, sailing, or flying, where precision is essential. To illustrate the importance of line declination, consider a sailor navigating through the open sea. Without accounting for line declination, the sailor may chart a course that appears correct on the map but leads them off their intended path. Over long distances, even a small degree of error can result in being miles away from the desired destination. Therefore, sailors often refer to nautical charts that provide information about line declination in their specific areas.Moreover, line declination is not a static value; it changes over time due to shifts in the Earth's magnetic field. This means that navigators must regularly update their knowledge of line declination to maintain accuracy. Many modern GPS devices automatically adjust for line declination, but understanding the underlying principles remains essential for those who rely on traditional navigation methods.In addition, line declination plays a vital role in various scientific fields, including geology and environmental studies. Researchers studying the Earth's magnetic field may analyze line declination to understand geological formations and tectonic movements. By examining historical data on line declination, scientists can gain insights into the Earth's past magnetic field behavior, which can inform predictions about future changes.In summary, the concept of line declination is fundamental to navigation and geography. It highlights the need for accuracy and awareness in various activities, from outdoor adventures to scientific research. By understanding and applying the principles of line declination, individuals can enhance their navigation skills and contribute to a deeper understanding of the Earth's magnetic phenomena.

在地理和导航领域，理解“线偏角”的概念对于准确的地图阅读和方向定位至关重要。“线偏角”是指磁北与真北之间的角度，这个角度会因地理位置的不同而有所变化。这种差异的产生是因为地球的磁场并不与其自转轴完美对齐。因此，导航员在使用指南针时必须考虑“线偏角”，以确保他们朝着正确的方向前进。例如，如果你身处一个“线偏角”为东10度的区域，这意味着当你的指南针指向磁北时，你实际上偏离真北10度。如果不进行修正，这可能会导致显著的错误，特别是在远足、航海或飞行等活动中，精确度至关重要。为了说明“线偏角”的重要性，可以考虑一位在开放海域航行的水手。如果不考虑“线偏角”，水手可能会绘制一条在地图上看似正确的航线，但实际上却将他们引向了错误的路径。经过长距离航行，即使是微小的误差也可能导致与目标目的地相距数英里。因此，水手通常会参考提供其特定区域“线偏角”信息的航海图。此外，“线偏角”并不是一个静态值；由于地球磁场的变化，它会随着时间而改变。这意味着导航员必须定期更新他们对“线偏角”的了解，以保持准确性。许多现代GPS设备会自动调整“线偏角”，但理解其基本原理对依赖传统导航方法的人仍然至关重要。此外，“线偏角”在地质学和环境研究等多个科学领域中也发挥着重要作用。研究地球磁场的研究人员可能会分析“线偏角”以了解地质结构和构造运动。通过检查“线偏角”的历史数据，科学家可以获得对地球过去磁场行为的洞察，从而为预测未来的变化提供依据。总之，“线偏角”的概念是导航和地理学的基础。它强调了在各种活动中对准确性和意识的需求，从户外冒险到科学研究。通过理解和应用“线偏角”的原理，个人可以提高他们的导航技能，并有助于更深入地理解地球的磁场现象。