mean solar day

简明释义

平太阳日平太阳日

英英释义

例句

1.The average length of a mean solar day 平均太阳日 is approximately 24 hours.

一个平均太阳日 mean solar day 的平均长度大约是24小时。

2.To synchronize clocks, we often refer to the mean solar day 平均太阳日 as a standard.

为了同步时钟，我们通常将平均太阳日 mean solar day 作为标准。

3.The definition of a mean solar day 平均太阳日 helps in understanding time zones.

对平均太阳日 mean solar day 的定义有助于理解时区。

4.Scientists use the concept of a mean solar day 平均太阳日 to create accurate timekeeping systems.

科学家使用平均太阳日 mean solar day 的概念来创建准确的计时系统。

5.The mean solar day 平均太阳日 is based on the Earth's rotation relative to the Sun.

平均太阳日 mean solar day 是基于地球相对于太阳的自转。

作文

The concept of a mean solar day is fundamental to our understanding of timekeeping and the organization of daily life. A mean solar day refers to the average length of a day, measured from one noon to the next, which is approximately 24 hours. This measurement is crucial because it provides a consistent framework for our calendars and daily activities. Historically, the division of time into days has been influenced by the natural cycles of the Earth. The rotation of the Earth on its axis creates the cycle of day and night, which is experienced by all living organisms. However, the actual time it takes for the Earth to complete one full rotation relative to the sun can vary slightly due to its elliptical orbit and axial tilt. Thus, the mean solar day was established as a way to standardize this measurement, averaging out the variations that occur throughout the year.In practical terms, the mean solar day is what we typically think of as a day. It is the basis for our clocks and watches, which help us coordinate our schedules and activities. Without the mean solar day, it would be challenging to maintain a consistent sense of time. For instance, if we relied solely on the actual solar time, our clocks would gradually drift out of sync with the solar noon, leading to confusion about when to start or end our daily tasks.The importance of the mean solar day extends beyond mere convenience; it also plays a significant role in various fields such as astronomy, navigation, and even agriculture. Farmers rely on the predictability of the mean solar day to plan their planting and harvesting schedules. Similarly, navigators use precise time measurements based on the mean solar day to determine their positions at sea. Moreover, the definition of a mean solar day is not just a scientific concept but also a cultural one. Different cultures have historically developed their own systems of timekeeping, often based on lunar cycles or other natural phenomena. However, the widespread adoption of the mean solar day has led to a more unified global understanding of time. This standardization is particularly important in our increasingly interconnected world, where international communication and travel require a common frame of reference for time.In conclusion, the mean solar day serves as a vital foundation for how we perceive and organize time. It allows us to synchronize our lives, facilitates various practical applications, and fosters a shared understanding across different cultures. As we continue to advance technologically and socially, the mean solar day remains an enduring element of our daily existence, reminding us of the intricate relationship between the Earth’s movements and our human experience.

“平均太阳日”的概念对我们理解时间的计算和日常生活的组织至关重要。“平均太阳日”是指从一个中午到下一个中午的平均天数，约为24小时。这个测量对于我们的日历和日常活动提供了一个一致的框架，因此显得尤为重要。历史上，时间的划分受到地球自然周期的影响。地球自转造成了昼夜交替的循环，这一现象被所有生物体所体验。然而，地球相对于太阳完成一次完整自转的实际时间会因其椭圆轨道和轴倾角的变化而略有不同。因此，“平均太阳日”被确立为一种标准化这一测量的方法，平均出全年中发生的变化。在实际应用中，“平均太阳日”是我们通常认为的一天。它是我们时钟和手表的基础，帮助我们协调日程和活动。如果没有“平均太阳日”，保持时间的一致性感觉将变得极具挑战性。例如，如果我们仅仅依赖实际的太阳时间，我们的时钟将逐渐与太阳中午的时间脱节，导致我们在开始或结束日常任务时产生困惑。“平均太阳日”的重要性不仅仅限于便利；它在天文学、导航甚至农业等多个领域也发挥着重要作用。农民依靠“平均太阳日”的可预测性来规划种植和收获的时间。同样，导航员使用基于“平均太阳日”的精确时间测量来确定他们在海上的位置。此外，“平均太阳日”的定义不仅是一个科学概念，也是一个文化概念。不同文化历史上发展了各自的时间计算系统，通常基于月相周期或其他自然现象。然而，“平均太阳日”的广泛采用导致了全球对时间的更统一理解。这种标准化在我们日益互联的世界中尤为重要，因为国际交流和旅行需要一个共同的时间参考框架。总之，“平均太阳日”作为我们感知和组织时间的重要基础，使我们能够同步生活，促进各种实际应用，并在不同文化之间培养共享理解。随着我们在技术和社会上的不断进步，“平均太阳日”仍然是我们日常生活中的一个持久元素，提醒我们地球运动与人类体验之间的复杂关系。