prime meridian

简明释义

本初子午线格林子午线

英英释义

例句

1.Many time zones are defined in relation to the prime meridian (本初子午线).

许多时区是相对于本初子午线定义的。

2.The location of the prime meridian (本初子午线) is at 0 degrees longitude.

本初子午线位于0度经度。

3.The prime meridian (本初子午线) divides the Eastern and Western Hemispheres.

本初子午线将东西半球分开。

4.Greenwich, London, is famous for being the home of the prime meridian (本初子午线).

伦敦的格林威治因是本初子午线的所在地而闻名。

5.When traveling east or west, you will cross the prime meridian (本初子午线).

当你向东或向西旅行时，你将穿越本初子午线。

作文

The concept of the prime meridian is fundamental to our understanding of geography and navigation. The prime meridian is defined as the zero-degree longitude line that runs from the North Pole to the South Pole, passing through Greenwich, London. This imaginary line serves as the starting point for measuring longitude, which is crucial for mapping and global positioning. Without the prime meridian, it would be challenging to determine locations on Earth accurately. Historically, the establishment of the prime meridian was a significant achievement in the field of cartography. Before its adoption, various countries used different meridians as their reference points, leading to confusion and inaccuracies in navigation. In 1884, an international conference held in Washington, D.C., resulted in the selection of the Greenwich meridian as the standard prime meridian. This decision was made largely due to the prominence of British naval power and the widespread use of British maps at the time.The importance of the prime meridian extends beyond mere navigation; it also plays a critical role in timekeeping. Time zones are based on the division of the Earth into longitudinal sections, with the prime meridian serving as the reference point for Coordinated Universal Time (UTC). Each hour difference from UTC corresponds to 15 degrees of longitude, meaning that as you move east or west from the prime meridian, local time shifts accordingly. This system allows for synchronized timekeeping across the globe, facilitating international communication and travel.Moreover, the prime meridian has cultural significance as well. It represents a point of unity among diverse nations, providing a common reference that transcends borders. The Royal Observatory in Greenwich, where the prime meridian is located, has become a popular tourist destination, symbolizing the intersection of science, history, and culture. Visitors often take photos straddling the line, embodying the idea of being in two hemispheres at once.In conclusion, the prime meridian is more than just a geographical marker; it is an essential element that underpins our understanding of the world. From navigation and timekeeping to cultural identity, the prime meridian influences various aspects of life. As we continue to explore and understand our planet, the significance of the prime meridian will undoubtedly endure, reminding us of our shared global heritage and the importance of cooperation in advancing knowledge and exploration.

“本初子午线”的概念是我们理解地理和导航的基础。“本初子午线”被定义为从北极到南极的零度经线，经过伦敦格林威治。这条虚拟的线作为测量经度的起点，对于制图和全球定位至关重要。没有“本初子午线”，准确确定地球上的位置将变得困难。在历史上，“本初子午线”的建立是制图领域的一项重大成就。在其采用之前，各国使用不同的子午线作为参考点，这导致了导航中的混淆和不准确性。1884年，在华盛顿特区举行的一次国际会议上，决定选择格林威治子午线作为标准“本初子午线”。这一决定主要是由于英国海军力量的突出和当时英国地图的广泛使用。“本初子午线”的重要性不仅限于导航；它在计时方面也发挥着关键作用。时区是基于地球被划分为经度部分的系统，以“本初子午线”为协调世界时间（UTC）的参考点。从UTC每小时的差异对应15度的经度，这意味着当你从“本初子午线”向东或向西移动时，当地时间相应变化。这个系统使全球的时间保持同步，便利了国际交流和旅行。此外，“本初子午线”还具有文化意义。它代表了各国之间的团结点，提供了一个超越国界的共同参考。位于格林威治的皇家天文台是“本初子午线”的所在地，已成为一个受欢迎的旅游目的地，象征着科学、历史和文化的交汇。游客们常常在这条线上拍照，体现出同时处于两个半球的概念。总之，“本初子午线”不仅仅是一个地理标记；它是支撑我们理解世界的一个基本元素。从导航和计时到文化认同，“本初子午线”影响着生活的各个方面。随着我们继续探索和理解我们的星球，“本初子午线”的重要性无疑将持续存在，提醒我们共享的全球遗产以及在推进知识和探索方面合作的重要性。