local meridian

简明释义

地方子午圈

英英释义

例句

1.To accurately determine the time, we need to align our clock with the local meridian (地方子午线).

为了准确确定时间，我们需要将时钟与地方子午线对齐。

2.Surveyors often use the local meridian (地方子午线) to establish property boundaries.

测量员通常使用地方子午线来确定财产边界。

3.The local meridian (地方子午线) serves as a reference point for local time calculations.

在当地时间计算中，地方子午线作为参考点。

4.The astronomer calculated the position of the stars based on the local meridian (地方子午线) at midnight.

天文学家根据午夜时分的地方子午线计算了星星的位置。

5.In navigation, understanding the local meridian (地方子午线) is crucial for plotting a course.

在航海中，理解地方子午线对于绘制航线至关重要。

作文

In the realm of geography and navigation, understanding the concept of the local meridian is crucial for accurately determining one's position on the Earth's surface. A local meridian refers to an imaginary line that runs from the North Pole to the South Pole, passing through a specific location on the Earth's surface. This line is essential for various applications, including timekeeping, navigation, and even in the field of astronomy.The significance of the local meridian can be illustrated through its relationship with time zones. Each location on Earth has its own local meridian, which is typically aligned with solar noon—the moment when the sun reaches its highest point in the sky. As the Earth rotates, different regions experience this solar noon at different times, leading to the creation of time zones. For instance, if you are in a city where your local meridian is set at 75 degrees west, solar noon will occur at approximately 12:00 PM local time. This system allows for a more organized approach to timekeeping across the globe.Furthermore, the local meridian plays an important role in navigation. Sailors and aviators often rely on their knowledge of the local meridian to determine their position relative to other locations. By knowing the coordinates of their local meridian, they can plot a course and navigate more effectively. This is particularly important in vast oceans or remote areas where landmarks may be scarce. The ability to understand and utilize the local meridian can mean the difference between reaching a destination safely or getting lost.In astronomy, the local meridian is used to track celestial bodies. Astronomers observe the movement of stars and planets across the night sky, noting when these celestial objects cross the local meridian. This crossing point is significant because it represents the moment when the object is at its highest altitude, making it easier to observe and study. Amateur astronomers often use the concept of the local meridian to plan their stargazing activities, ensuring that they catch their desired celestial events at the right time.In conclusion, the local meridian is much more than just an abstract concept; it is a practical tool that aids in navigation, timekeeping, and astronomy. Understanding the local meridian allows individuals to better comprehend their position on Earth and the passage of time, enhancing their ability to engage with the world around them. Whether you are sailing across the ocean, stargazing in your backyard, or simply trying to keep track of time, the local meridian serves as a fundamental reference point that connects us all to the rhythms of our planet. Therefore, mastering the concept of the local meridian is essential for anyone interested in geography, navigation, or astronomy.

在地理和导航领域，理解“地方子午线”的概念对于准确确定一个人在地球表面的位置至关重要。“地方子午线”是指一条从北极到南极的想象线，穿过地球表面的特定位置。这条线对于各种应用都至关重要，包括计时、导航，甚至在天文学领域。“地方子午线”的重要性可以通过它与时区的关系来说明。地球上的每个位置都有自己的“地方子午线”，通常与太阳正午对齐——即太阳在天空中达到最高点的时刻。随着地球的自转，不同地区在不同时间经历这一太阳正午，从而导致时区的形成。例如，如果您位于一个“地方子午线”设定为西经75度的城市，太阳正午大约会在当地时间中午12点发生。这种系统使全球的计时方式更加有序。此外，“地方子午线”在导航中也起着重要作用。水手和飞行员常常依靠对“地方子午线”的了解来确定他们相对于其他位置的方位。通过知道他们的“地方子午线”的坐标，他们可以绘制航线并更有效地导航。这在辽阔的海洋或偏远地区尤为重要，因为那里可能缺乏地标。理解和利用“地方子午线”的能力可能意味着安全到达目的地或迷失方向之间的区别。在天文学中，“地方子午线”用于追踪天体。天文学家观察星星和行星在夜空中的运动，记下这些天体何时穿过“地方子午线”。这个交叉点很重要，因为它代表了天体达到最高高度的时刻，使观察和研究变得更加容易。业余天文学家常常利用“地方子午线”的概念来计划他们的观星活动，确保他们在正确的时间捕捉到所需的天文事件。总之，“地方子午线”不仅仅是一个抽象概念；它是一个实用工具，有助于导航、计时和天文学。理解“地方子午线”使个人能够更好地理解自己在地球上的位置和时间的流逝，增强他们与周围世界互动的能力。无论您是在跨越海洋航行、在后院观星，还是仅仅试图跟踪时间，“地方子午线”都作为一个基本的参考点，将我们所有人连接到我们星球的节奏。因此，掌握“地方子午线”的概念对任何对地理、导航或天文学感兴趣的人来说都是必不可少的。