apparent solar time

简明释义

视时

英英释义

例句

1.To convert local time to apparent solar time, you need to account for the equation of time.

要将当地时间转换为太阳表观时间，您需要考虑时间方程。

2.Farmers often rely on apparent solar time to determine the best times for planting and harvesting.

农民常常依赖太阳表观时间来确定最佳的种植和收获时间。

3.The sundial shows the apparent solar time, which is based on the position of the sun in the sky.

日晷显示的太阳表观时间是基于太阳在天空中的位置。

4.During a solar eclipse, the apparent solar time can be affected by the moon's shadow.

在日食期间，太阳表观时间可能会受到月球阴影的影响。

5.Astronomers use apparent solar time for precise calculations of celestial events.

天文学家使用太阳表观时间来精确计算天文事件。

作文

Understanding the concept of time is essential for our daily lives, and one of the fundamental ways we measure time is through the use of solar time. Among various forms of solar time, the term apparent solar time refers to the time based on the position of the sun in the sky. Unlike standard time, which is regulated by time zones and clocks, apparent solar time is directly linked to the natural movement of the sun, providing a more intuitive way to understand how daylight changes throughout the year.To comprehend apparent solar time, it is crucial to recognize that the sun does not rise and set at the same time every day. This variation occurs due to the tilt of the Earth's axis and its elliptical orbit around the sun. As a result, there are days when noon, defined as the moment when the sun is at its highest point in the sky, can occur at different clock times. This discrepancy between solar time and clock time leads us to the idea of apparent solar time being a more natural and variable measurement of time.For example, if you were to observe the sun's position at noon every day, you would notice that it does not consistently align with 12:00 PM on your clock. Instead, it may be earlier or later depending on the day of the year. This phenomenon is due to what is known as the equation of time, which accounts for the differences between apparent solar time and mean solar time. Mean solar time averages out these variations over the course of a year, allowing for a more standardized way of measuring time.The concept of apparent solar time has practical applications beyond mere curiosity. For instance, in agriculture, farmers have relied on the sun's position to determine the best times for planting and harvesting crops. By understanding apparent solar time, they can make informed decisions based on the natural rhythms of light and darkness, optimizing their yields and ensuring sustainable practices.Moreover, the study of apparent solar time also plays a significant role in navigation. Sailors and explorers have historically used the sun's position to calculate their latitude and longitude while at sea. By knowing the local solar time and comparing it to standard time, they can determine their exact location on the globe. This method was particularly crucial before the advent of modern navigational tools and technology.In conclusion, apparent solar time is an essential concept that highlights the relationship between time and the natural world. It reminds us that our understanding of time is not solely based on artificial constructs but is deeply rooted in the movements of celestial bodies. By appreciating apparent solar time, we can develop a greater awareness of our environment and how it influences our daily lives. Whether we are farmers, sailors, or simply individuals trying to make sense of our routines, recognizing the significance of apparent solar time can enrich our understanding of time itself and its impact on our existence.

理解时间的概念对我们的日常生活至关重要，而我们测量时间的基本方式之一就是通过太阳时间。在各种形式的太阳时间中，术语apparent solar time指的是基于太阳在天空中的位置来计算的时间。与通过时区和时钟调节的标准时间不同，apparent solar time直接与太阳的自然运动相关联，提供了一种更直观的方式来理解白昼如何在一年中变化。要理解apparent solar time，关键是要认识到太阳并不是每天在同一时间升起和落下。这种变化是由于地球轴的倾斜和围绕太阳的椭圆轨道所致。因此，有些日子中，中午，即太阳在天空中最高点的时刻，可能会发生在不同的时钟时间。这种太阳时间与时钟时间之间的差异使我们意识到apparent solar time是一种更自然且可变的时间测量方式。例如，如果你每天观察太阳在中午的位置，你会发现它并不总是与时钟上的12:00 PM一致。相反，它可能会根据年份的不同而提前或推迟。这种现象是由于所谓的时间方程，它解释了apparent solar time与平均太阳时间之间的差异。平均太阳时间在一年中平均这些变化，从而允许一种更标准化的时间测量方式。apparent solar time的概念不仅仅是出于好奇而存在，它还有实际应用。例如，在农业中，农民依靠太阳的位置来确定最佳的播种和收获时间。通过理解apparent solar time，他们可以根据光明和黑暗的自然节奏做出明智的决策，从而优化产量并确保可持续的做法。此外，研究apparent solar time在导航中也发挥着重要作用。历史上，水手和探险家利用太阳的位置来计算他们在海洋上的纬度和经度。通过了解当地的太阳时间并将其与标准时间进行比较，他们可以确定自己在地球上的确切位置。这种方法在现代导航工具和技术出现之前尤为重要。总之，apparent solar time是一个重要的概念，它突显了时间与自然世界之间的关系。它提醒我们，时间的理解不仅仅基于人为构造，而是深深植根于天体的运动之中。通过欣赏apparent solar time，我们可以对环境及其如何影响我们的日常生活有更深刻的认识。无论我们是农民、航海者，还是只是试图理解自己日常生活的人，认识到apparent solar time的重要性都能丰富我们对时间本身及其对我们存在影响的理解。