meridian passage

简明释义

中天

英英释义

例句

1.The astronomer noted the time of the meridian passage for the star, which is crucial for accurate celestial navigation.

天文学家记录了这颗星星的子午线通过时间，这对于准确的天体导航至关重要。

2.Sailors often rely on meridian passage to determine their longitude while at sea.

水手们常常依赖子午线通过来确定他们在海上的经度。

3.During the summer solstice, the sun's meridian passage occurs at noon, marking the longest day of the year.

在夏至期间，太阳的子午线通过发生在正午，标志着一年中最长的一天。

4.The meridian passage of the moon can be observed from various locations on Earth, depending on the time of year.

月球的子午线通过可以从地球上的不同地点观察到，具体取决于年份。

5.Understanding the meridian passage is essential for anyone studying astronomy or navigation.

理解子午线通过对任何学习天文学或导航的人来说都是必不可少的。

作文

The concept of meridian passage is often used in astronomy and geography to describe the moment when a celestial body, such as the sun, crosses an observer's local meridian. This event is significant because it marks the highest point that the sun reaches in the sky during its daily journey, providing a reference point for timekeeping and navigation. Understanding meridian passage is crucial for various fields, including astronomy, agriculture, and even daily life activities. In astronomy, the meridian passage of the sun occurs at solar noon, which is when the sun is at its zenith. This moment varies slightly each day due to the elliptical shape of the Earth's orbit and its axial tilt. For astronomers, tracking the meridian passage helps in determining the exact position of celestial bodies and understanding their movements across the sky. It also aids in the creation of accurate astronomical charts and calendars.In agriculture, farmers often rely on the timing of the meridian passage to optimize planting and harvesting schedules. Knowing when the sun is at its highest can help them make informed decisions about irrigation and crop management. For instance, certain crops may require more sunlight during specific times of the day, making the meridian passage a critical factor in agricultural productivity.Additionally, the meridian passage has practical implications in our daily lives. For example, many cultures have developed traditional practices and rituals centered around this astronomical event. In some societies, the time of meridian passage is used to mark midday meals or prayer times, reflecting the importance of the sun's position in guiding human activity.Moreover, the meridian passage can also be related to the concept of time zones. As the Earth rotates, different regions experience the meridian passage at different times, leading to the establishment of standard time zones. This synchronization allows for better coordination of activities across vast distances, highlighting the interconnectedness of our world.In conclusion, the meridian passage is not just an astronomical phenomenon; it plays a vital role in various aspects of human life, from scientific research to agricultural practices and cultural traditions. By understanding the significance of meridian passage, we can appreciate how celestial movements influence our daily routines and decision-making processes. As we continue to explore the universe and its mysteries, the concept of meridian passage will remain an essential element in our quest for knowledge and understanding.

“子午线经过”这一概念通常用于天文学和地理学，描述一个天体（如太阳）穿过观察者当地子午线的时刻。这个事件具有重要意义，因为它标志着太阳在日常旅程中到达天空的最高点，为计时和导航提供了参考点。理解“子午线经过”对天文学、农业甚至日常生活活动等多个领域至关重要。在天文学中，太阳的“子午线经过”发生在太阳中午，即太阳到达天顶的时刻。由于地球轨道的椭圆形状和其轴倾角，这一时刻每天略有不同。对于天文学家来说，追踪“子午线经过”有助于确定天体的确切位置并理解它们在天空中的运动。这也有助于制作准确的天文图表和日历。在农业方面，农民往往依赖“子午线经过”的时机来优化种植和收获时间表。知道太阳何时处于最高点可以帮助他们做出关于灌溉和作物管理的明智决策。例如，某些作物可能在一天中的特定时间需要更多阳光，这使得“子午线经过”成为农业生产力的关键因素。此外，“子午线经过”在我们的日常生活中也有实际意义。例如，许多文化围绕这一天文事件发展出了传统习俗和仪式。在一些社会中，“子午线经过”的时间被用来标记中午餐或祷告时间，反映出太阳位置在指导人类活动中的重要性。而且，“子午线经过”还与时区的概念相关。随着地球的自转，不同地区在不同时间经历“子午线经过”，这导致标准时区的建立。这种同步化使得跨越广阔距离的活动协调变得更加顺畅，突显了我们世界的互联性。总之，“子午线经过”不仅仅是一个天文现象；它在科学研究、农业实践和文化传统等多个方面扮演着重要角色。通过理解“子午线经过”的重要性，我们可以欣赏天体运动如何影响我们的日常生活和决策过程。随着我们继续探索宇宙及其奥秘，“子午线经过”这一概念将始终是我们追求知识和理解的重要元素。