meridian angle

简明释义

子午角

英英释义

例句

1.The architect used the meridian angle to optimize sunlight exposure in the building design.

建筑师使用子午线角来优化建筑设计中的阳光照射。

2.In navigation, the meridian angle helps sailors understand their longitude.

在航海中，子午线角帮助水手理解他们的经度。

3.Astronomical observations often require precise measurements of the meridian angle.

天文观测通常需要对子午线角进行精确测量。

4.To find the local noon, we need to measure the meridian angle of the sun.

为了找到当地的正午，我们需要测量太阳的子午线角。

5.The astronomer calculated the meridian angle to determine the star's position in the night sky.

天文学家计算了子午线角以确定星星在夜空中的位置。

作文

In the field of astronomy and navigation, understanding the concept of meridian angle is crucial for accurately determining one's position on Earth. The meridian angle refers to the angle measured from the local meridian to the celestial object being observed. This measurement is essential for various applications, including map-making, celestial navigation, and even in modern GPS technology. To grasp the significance of the meridian angle, one must first understand what a meridian is. A meridian is an imaginary line that runs from the North Pole to the South Pole, representing the longitude of a specific location. When we talk about the meridian angle, we are essentially discussing the relationship between this line and the position of celestial bodies, such as stars or planets, in the night sky.For example, when an astronomer observes a star, they can determine the meridian angle by measuring how far the star is from the local meridian at that moment. This is done using instruments like theodolites or telescopes equipped with angular measurement capabilities. The meridian angle is typically expressed in degrees, with 0 degrees indicating that the celestial body is directly on the meridian, while 90 degrees indicates that it is on the horizon.The importance of the meridian angle extends beyond just theoretical knowledge; it has practical implications for navigation. Sailors and pilots rely on accurate measurements of celestial bodies to chart their courses across vast distances. By calculating the meridian angle of the sun or other stars, navigators can determine their latitude and longitude, which is vital for ensuring safe travel.Moreover, the meridian angle plays a significant role in timekeeping. The position of the sun relative to the local meridian indicates the time of day. For instance, when the sun reaches its highest point in the sky, it is at the local noon, which corresponds to a meridian angle of 0 degrees. This relationship between time and the meridian angle is fundamental to our understanding of time zones and the establishment of standard time across different regions.In conclusion, the meridian angle is a vital concept in both astronomy and navigation. It connects the observer's location on Earth with the positions of celestial bodies, facilitating accurate navigation and timekeeping. Understanding the meridian angle not only enhances our knowledge of the universe but also improves our ability to traverse it safely and efficiently. As we continue to explore the skies and navigate the seas, the meridian angle will remain an essential tool in our arsenal of scientific knowledge.

在天文学和导航领域，理解“meridian angle”这一概念对于准确确定一个人在地球上的位置至关重要。“meridian angle”指的是从当地子午线到被观察天体的角度。这一测量对于制图、天体导航甚至现代GPS技术等多种应用都是必不可少的。要理解“meridian angle”的重要性，首先必须了解什么是子午线。子午线是一条想象中的线，从北极延伸到南极，表示特定位置的经度。当我们谈论“meridian angle”时，我们实际上是在讨论这条线与夜空中天体（如星星或行星）的位置之间的关系。例如，当天文学家观察一颗星星时，他们可以通过测量该星星与当地子午线的距离来确定“meridian angle”。这通常使用经纬仪或配备有角度测量能力的望远镜来完成。“meridian angle”通常以度数表示，0度表示天体正好位于子午线上，而90度则表示它在地平线上。“meridian angle”的重要性不仅仅体现在理论知识上，它对导航也有实际意义。水手和飞行员依赖于对天体的准确测量来绘制他们在辽阔海域上的航线。通过计算太阳或其他星星的“meridian angle”，导航员可以确定他们的纬度和经度，这对于确保安全旅行至关重要。此外，“meridian angle”在计时方面也发挥着重要作用。太阳相对于当地子午线的位置指示了一天中的时间。例如，当太阳到达天空中的最高点时，它位于当地正午，此时对应的“meridian angle”为0度。这种时间与“meridian angle”之间的关系是我们理解时区和在不同地区建立标准时间的基础。总之，“meridian angle”是天文学和导航中一个重要的概念。它将观察者在地球上的位置与天体的位置联系起来，从而促进了准确的导航和计时。理解“meridian angle”不仅增强了我们对宇宙的认识，也提高了我们安全高效地穿越宇宙的能力。在我们继续探索天空和航行海洋的过程中，“meridian angle”将始终是我们科学知识宝库中的一项重要工具。