retardation of mean solar time

简明释义

平太阳时迟滞差

英英释义

例句

1.In meteorology, the retardation of mean solar time 平均太阳时间的延迟 is considered when analyzing climate data.

在气象学中，分析气候数据时会考虑到平均太阳时间的延迟。

2.The retardation of mean solar time 平均太阳时间的延迟 can affect navigation systems that rely on precise timing.

对于依赖精确计时的导航系统来说，平均太阳时间的延迟可能会影响其准确性。

3.Astronomers often calculate the retardation of mean solar time 平均太阳时间的延迟 to predict celestial events.

天文学家常常计算平均太阳时间的延迟以预测天文事件。

4.The study of the retardation of mean solar time 平均太阳时间的延迟 is crucial for accurate timekeeping.

研究平均太阳时间的延迟对于准确计时至关重要。

5.Understanding the retardation of mean solar time 平均太阳时间的延迟 helps in synchronizing clocks across different regions.

理解平均太阳时间的延迟有助于在不同地区同步时钟。

作文

The concept of time is fundamental to our understanding of the universe and our daily lives. Among various methods of measuring time, solar time holds a significant place. However, one intriguing aspect of solar time is the retardation of mean solar time, which refers to the discrepancy between the time kept by a sundial and the time measured by an atomic clock or a mechanical clock. This phenomenon arises due to the elliptical shape of Earth's orbit and its axial tilt, which causes variations in the speed at which the Earth travels around the Sun.To comprehend the retardation of mean solar time, we first need to understand what mean solar time is. Mean solar time is based on the average position of the Sun in the sky over the course of a year. It assumes a perfectly circular orbit and a constant rotational speed of the Earth, which is not the case in reality. As the Earth moves along its elliptical orbit, the speed at which it rotates changes slightly, leading to inconsistencies in solar time measurement.The retardation of mean solar time can be observed throughout the year. For instance, during certain times, noon on a sundial may occur several minutes earlier or later than noon according to mean solar time. This variation can be attributed to the combined effects of the Earth's axial tilt and its elliptical orbit. The result is that the sundial, which relies on the position of the Sun, does not always align perfectly with the more uniform measure provided by clocks.This phenomenon has practical implications in our everyday lives. For example, farmers who rely on solar time for planting and harvesting crops may find discrepancies that affect their schedules. Similarly, travelers and astronomers must consider this retardation when calculating precise timings for events such as eclipses or transits. Understanding the retardation of mean solar time helps us appreciate the complexity of timekeeping and the natural rhythms of our planet.Furthermore, the retardation of mean solar time illustrates the importance of accurate timekeeping in modern society. With the advent of technology, we have developed highly precise atomic clocks that allow us to synchronize activities across the globe. While these clocks provide a consistent measure of time, the variations introduced by solar time remind us of the dynamic nature of our planet and its movements.In conclusion, the retardation of mean solar time is a fascinating topic that highlights the discrepancies in our understanding of time due to the Earth's irregular motion. By studying this phenomenon, we gain insights not only into the mechanics of our solar system but also into the ways in which we organize our lives around the measurement of time. The interplay between mean solar time and actual solar time serves as a reminder of the intricate relationship between humanity and the cosmos, urging us to respect the natural laws that govern our existence.

时间的概念对我们理解宇宙和日常生活至关重要。在各种测量时间的方法中，太阳时间占据着重要的位置。然而，太阳时间的一个引人入胜的方面是平均太阳时间的滞后，它指的是日晷所记录的时间与原子钟或机械钟所测得的时间之间的差异。这种现象是由于地球轨道的椭圆形状及其轴倾角造成的，导致地球绕太阳运动的速度发生变化。要理解平均太阳时间的滞后，我们首先需要了解什么是平均太阳时间。平均太阳时间是基于一年中太阳在天空中的平均位置。它假设轨道是完美的圆形，地球的自转速度是恒定的，但实际上并非如此。当地球沿着椭圆轨道运动时，自转的速度会略有变化，导致太阳时间测量的不一致。平均太阳时间的滞后可以在一年中的不同时间观察到。例如，在某些时候，日晷上的正午可能比平均太阳时间的正午早或晚几分钟。这种变化可以归因于地球轴倾角和椭圆轨道的共同影响。结果是，依赖太阳位置的日晷并不总是与钟表提供的更均匀的时间测量完美对齐。这一现象在我们的日常生活中具有实际意义。例如，依赖太阳时间进行播种和收获的农民可能会发现这些差异影响他们的时间安排。同样，旅行者和天文学家在计算日食或过境等事件的精确时间时，也必须考虑这一滞后。理解平均太阳时间的滞后帮助我们欣赏时间测量的复杂性以及我们星球的自然节奏。此外，平均太阳时间的滞后还说明了准确计时在现代社会中的重要性。随着科技的进步，我们开发了高度精确的原子钟，使我们能够在全球范围内同步活动。虽然这些钟表提供了一致的时间测量，但太阳时间所引入的变化提醒我们地球及其运动的动态特性。总之，平均太阳时间的滞后是一个引人入胜的主题，突显了由于地球不规则运动而导致的时间理解上的差异。通过研究这一现象，我们不仅获得了关于太阳系力学的见解，还了解到我们如何围绕时间的测量来组织生活。平均太阳时间与实际太阳时间之间的相互作用提醒我们尊重支配我们存在的自然法则。