first meridian

简明释义

格林子午线

英英释义

例句

1.Many maps are oriented with the first meridian at the center.

许多地图的中心是以本初子午线为基准的。

2.The first meridian is often used as a reference point for navigation.

通常将本初子午线作为导航的参考点。

3.The first meridian runs through several countries, including the UK.

本初子午线经过多个国家，包括英国。

4.In geography, the first meridian is defined as 0 degrees longitude.

在地理学中，本初子午线被定义为0度经度。

5.Time zones are calculated based on the first meridian in Greenwich, England.

时区是根据位于英格兰格林威治的本初子午线计算的。

作文

The concept of the first meridian is fundamental in understanding geography and navigation. The first meridian, also known as the Prime Meridian, is the line of longitude that is defined to be 0 degrees. This line runs from the North Pole to the South Pole and serves as the starting point for measuring longitude east and west around the Earth. It is crucial for mapping and global positioning systems, as it helps establish a reference point for time zones and geographical coordinates. Historically, the establishment of the first meridian was not without controversy. Before the Prime Meridian was agreed upon at the International Meridian Conference in 1884, various countries used different meridians for their maps and navigational purposes. For instance, France adopted the Paris meridian, while Britain used the Greenwich meridian. The decision to use the Greenwich meridian as the standard was largely due to the fact that more than half of the world’s shipping was done by British vessels at that time. Thus, it made sense for the maritime nation to have its meridian recognized globally.The significance of the first meridian extends beyond mere navigation; it also plays a critical role in the field of timekeeping. The concept of time zones is directly related to the first meridian. Since the Earth is divided into 24 time zones, each corresponding to 15 degrees of longitude, the Prime Meridian serves as the reference point for Coordinated Universal Time (UTC). This means that when it is noon at the first meridian, it is the standard reference for timekeeping across the globe.In modern geography, the first meridian is not just a theoretical line; it is marked by the Royal Observatory in Greenwich, London. Visitors from around the world come to stand on this historic line, taking photos and experiencing the unique sensation of being in two hemispheres at once. The observatory itself is a UNESCO World Heritage Site, highlighting its importance in the history of science and navigation.Furthermore, the first meridian has implications for international relations and global cooperation. The alignment of time zones and the standardization of geographical coordinates facilitate international communication, trade, and travel. In an increasingly globalized world, understanding the significance of the first meridian is essential for anyone involved in international business or diplomacy.In conclusion, the first meridian is much more than just a line on a map; it is a vital reference point that has shaped our understanding of the world. From navigation and timekeeping to international relations, the implications of this meridian are far-reaching. As we continue to explore and understand our planet, the first meridian will remain a cornerstone of geographical knowledge and a symbol of our interconnectedness.

“第一子午线”的概念对于理解地理和导航至关重要。“第一子午线”，也称为本初子午线，是定义为0度的经线。这条线从北极延伸到南极，并作为测量东西经度的起点。它对制图和全球定位系统至关重要，因为它有助于建立时区和地理坐标的参考点。历史上，“第一子午线”的建立并非没有争议。在1884年的国际子午线会议之前，各国在地图和导航目的上使用不同的子午线。例如，法国采用了巴黎子午线，而英国则使用格林威治子午线。选择格林威治子午线作为标准的决定在很大程度上是由于当时超过一半的世界航运由英国船只完成。因此，让这个海洋国家的子午线获得全球认可是合乎逻辑的。“第一子午线”的重要性不仅仅体现在导航方面；它在计时领域也起着关键作用。时区的概念与“第一子午线”直接相关。由于地球被划分为24个时区，每个时区对应15度的经度，因此本初子午线作为协调世界时间（UTC）的参考点。这意味着，当“第一子午线”上的时间是中午时，便成为全球计时的标准参考。在现代地理中，“第一子午线”不仅仅是一条理论线；它在伦敦的格林威治皇家天文台标记着。来自世界各地的游客前来站在这一历史线条上，拍照并体验同时处于两个半球的独特感觉。天文台本身是联合国教科文组织的世界遗产，突显了它在科学和导航历史中的重要性。此外，“第一子午线”对国际关系和全球合作也具有影响。时区的协调和地理坐标的标准化促进了国际交流、贸易和旅行。在一个日益全球化的世界中，理解“第一子午线”的重要性对任何参与国际商业或外交的人来说都是必不可少的。总之，“第一子午线”不仅仅是地图上的一条线；它是一个重要的参考点，塑造了我们对世界的理解。从导航和计时到国际关系，这条子午线的影响深远。随着我们继续探索和理解我们的星球，“第一子午线”将仍然是地理知识的基石，也是我们相互联系的象征。