lunar day

简明释义

太阴日

英英释义

例句

1.A lunar day 月亮日 lasts about 29.5 Earth days, which is why the phases of the moon change slowly.

一个lunar day 月亮日大约持续29.5个地球日，这就是为什么月相变化缓慢的原因。

2.Astronauts on the moon experience a lunar day 月亮日 that is much longer than a typical day on Earth.

在月球上的宇航员经历的lunar day 月亮日比地球上的典型一天要长得多。

3.The concept of a lunar day 月亮日 is important for planning lunar missions.

对于规划月球任务来说，lunar day 月亮日的概念非常重要。

4.During a lunar day 月亮日, temperatures on the moon can rise significantly due to direct sunlight.

在lunar day 月亮日期间，月球上的温度会因为直射阳光而显著上升。

5.Each lunar day 月亮日 provides about 14 Earth days of sunlight followed by 14 Earth days of darkness.

每个lunar day 月亮日提供大约14个地球日的阳光，随后是14个地球日的黑暗。

作文

The concept of a lunar day is fascinating and often misunderstood. A lunar day refers to the time it takes for the Moon to rotate once on its axis relative to the Earth, which is approximately 29.5 Earth days. This duration is significant because it determines how we perceive the phases of the Moon from our vantage point on Earth. Unlike a solar day, which is based on the Earth's rotation and lasts 24 hours, a lunar day is much longer. Understanding the lunar day is crucial for various fields, including astronomy, navigation, and even space exploration. For astronomers, knowing the length of a lunar day helps in predicting the visibility of the Moon and its phases. For example, when planning observations or missions to the Moon, scientists must consider the timing of a lunar day to ensure that their equipment operates optimally under the right conditions. In addition to scientific applications, the lunar day has cultural significance. Many ancient civilizations observed the Moon's cycles and incorporated them into their calendars and agricultural practices. The lunar day influenced planting and harvesting times, as farmers would align their activities with the Moon's phases. Even today, some cultures still follow lunar calendars, which are based on the lunar day rather than the solar cycle. Moreover, the lunar day plays a vital role in the study of lunar geology and potential human colonization of the Moon. As we plan future missions to establish bases on the lunar surface, understanding the effects of the long lunar day on temperature fluctuations and radiation exposure becomes essential. The Moon experiences extreme temperature changes between day and night due to the length of the lunar day, which can affect both equipment and human habitation. In conclusion, the lunar day is not just a measure of time; it is a critical concept that intertwines science, culture, and future exploration. By comprehending the implications of a lunar day, we can better appreciate the Moon's influence on Earth and our endeavors beyond our planet. As we continue to explore the cosmos, the knowledge of a lunar day will undoubtedly guide us in our quest to understand our universe better.

“月球日”的概念令人着迷，常常被误解。“月球日”是指月球相对于地球自转一周所需的时间，大约为29.5个地球日。这个时长非常重要，因为它决定了我们从地球上观察月亮的相位。与基于地球自转并持续24小时的太阳日不同，月球日要长得多。理解“月球日”对多个领域至关重要，包括天文学、导航甚至太空探索。对于天文学家来说，了解“月球日”的长度有助于预测月亮的可见性及其相位。例如，在计划观测或前往月球的任务时，科学家必须考虑“月球日”的时间，以确保他们的设备在正确条件下最佳运作。除了科学应用外，“月球日”还有文化意义。许多古代文明观察月亮的周期，并将其纳入他们的日历和农业实践中。“月球日”影响着种植和收获的时间，因为农民会根据月亮的相位来安排他们的活动。即使在今天，一些文化仍然遵循基于“月球日”的农历，而非太阳周期。此外，“月球日”在研究月球地质和人类潜在的月球殖民方面也发挥着重要作用。在我们计划未来的任务以在月球表面建立基地时，了解“月球日”对温度波动和辐射暴露的影响变得至关重要。由于“月球日”的长度，月球经历白昼和黑夜之间极端的温度变化，这可能影响设备和人类居住。总之，“月球日”不仅仅是时间的衡量；它是一个关键概念，交织着科学、文化和未来探索。通过理解“月球日”的含义，我们可以更好地欣赏月球对地球的影响以及我们超越地球的努力。随着我们继续探索宇宙，对“月球日”的知识无疑将指导我们更好地理解我们的宇宙。