difference of longitude

简明释义

经差

英英释义

例句

1.The difference of longitude 经度差 can affect the timing of sunset in different locations.

不同地点的日落时间可能会受到difference of longitude 经度差的影响。

2.To calculate the time difference between two cities, you need to know the difference of longitude 经度差.

要计算两个城市之间的时间差，你需要知道它们的difference of longitude 经度差。

3.Navigators rely on the difference of longitude 经度差 to chart their course across the ocean.

航海者依赖于difference of longitude 经度差来规划他们的航线。

4.Geographers use the difference of longitude 经度差 to help define political boundaries.

地理学家利用difference of longitude 经度差来帮助界定政治边界。

5.When planning a flight, airlines must consider the difference of longitude 经度差 for accurate arrival times.

在规划航班时，航空公司必须考虑difference of longitude 经度差以确保准确的到达时间。

作文

Understanding the concept of difference of longitude is essential for navigation and geography. Longitude refers to the angular distance of a point on the Earth's surface, measured in degrees east or west of the Prime Meridian, which is located at 0 degrees longitude. The difference of longitude between two points helps determine how far apart they are in terms of their east-west positioning. For example, if one city is located at 30 degrees east and another at 60 degrees east, the difference of longitude is 30 degrees. This measurement is crucial for sailors and aviators, as it assists them in plotting their courses accurately across vast distances. The Earth is divided into 360 degrees of longitude, with each degree further divided into minutes and seconds. When calculating the difference of longitude, it is important to consider whether the longitudes are in the eastern or western hemispheres. If both locations are in the same hemisphere, the difference of longitude can be found by simply subtracting the smaller value from the larger one. However, if one location is in the eastern hemisphere and the other in the western hemisphere, the calculation requires adding the two longitudes together. In practical terms, the difference of longitude not only aids in navigation but also plays a significant role in timekeeping. The Earth rotates on its axis, completing a full rotation every 24 hours. Consequently, every 15 degrees of longitude corresponds to a one-hour difference in local time. Therefore, understanding the difference of longitude allows travelers to adjust their watches and schedules according to their new geographical location. For instance, if someone travels from New York City, located at approximately 74 degrees west, to London, which is around 0 degrees longitude, the difference of longitude is 74 degrees. This means that there is a time difference of about five hours, with London being ahead. Furthermore, the difference of longitude is also significant in scientific fields such as meteorology and astronomy. Meteorologists use this information to track weather patterns and phenomena that may vary between different longitudes. Astronomers rely on longitude when observing celestial events, as the visibility of certain stars and planets can change based on an observer's longitudinal position. In conclusion, the difference of longitude is a fundamental concept that extends beyond simple geographic measurements. It is intricately linked to navigation, timekeeping, and various scientific disciplines. By grasping the importance of the difference of longitude, individuals can enhance their understanding of the world around them, whether they are navigating the seas, traveling across time zones, or studying the cosmos. Thus, mastering this concept is not only beneficial for students of geography but also for anyone who wishes to engage with the complexities of our planet.

理解经度差的概念对于导航和地理学至关重要。经度是指地球表面某一点的角距离，以东或西的度数来测量，零度经线位于本初子午线。两个点之间的经度差有助于确定它们在东西方向上的距离。例如，如果一个城市位于东经30度，另一个城市位于东经60度，则经度差为30度。这一测量对于水手和飞行员至关重要，因为它帮助他们准确地在广阔的距离上绘制航线。地球被划分为360度经度，每度又进一步细分为分钟和秒。当计算经度差时，考虑经度位于东半球还是西半球非常重要。如果两个地点位于同一半球，可以通过简单地从较大值中减去较小值来找到经度差。然而，如果一个地点位于东半球而另一个位于西半球，则计算需要将两个经度相加。在实际操作中，经度差不仅有助于导航，还在计时方面发挥着重要作用。地球围绕其轴线旋转，每24小时完成一次完整的旋转。因此，每15度经度对应于当地时间的一个小时差异。因此，理解经度差使旅行者能够根据新的地理位置调整他们的手表和日程。例如，如果某人从位于约西经74度的纽约市旅行到位于约零度经线的伦敦，则经度差为74度。这意味着两地之间的时间差约为五个小时，伦敦领先。此外，经度差在气象学和天文学等科学领域也具有重要意义。气象学家利用这些信息来跟踪在不同经度之间可能变化的天气模式和现象。天文学家在观察天体事件时依赖经度，因为某些星星和行星的可见性可能会根据观察者的经度位置而变化。总之，经度差是一个基本概念，不仅限于简单的地理测量。它与导航、计时和各种科学学科密切相关。通过掌握经度差的重要性，个人可以增强对周围世界的理解，无论他们是在航海、跨越时区旅行，还是研究宇宙。因此，掌握这一概念不仅对地理学学生有益，对任何希望深入了解我们星球复杂性的人都至关重要。