diurnal circle

简明释义

周日圈

英英释义

例句

1.During a clear night, the stars trace their path along the diurnal circle.

在晴朗的夜晚，星星沿着日周圈描绘出它们的轨迹。

2.The sun moves along the diurnal circle, rising in the east and setting in the west.

太阳沿着日周圈移动，从东方升起，向西方落下。

3.In ancient times, people used the diurnal circle to create sundials for telling time.

在古代，人们利用日周圈制作日晷来计时。

4.The concept of the diurnal circle is essential for understanding the Earth's rotation.

理解地球自转的基本概念是日周圈。

5.Astronomers study the diurnal circle to understand the apparent motion of stars in the night sky.

天文学家研究日周圈以了解夜空中星星的表观运动。

作文

The concept of the diurnal circle refers to the apparent movement of the sun across the sky throughout the day, creating a cycle of light and darkness that defines our daily lives. This phenomenon is not just a simple observation; it has profound implications for various aspects of life on Earth, including ecology, agriculture, and even human psychology. Understanding the diurnal circle helps us appreciate the intricate balance of nature and the rhythms that govern our existence.Every morning, as the sun rises in the east, it begins its journey across the sky, illuminating the world around us. This rising sun marks the beginning of the day, bringing warmth and light that awaken both flora and fauna. Plants, for instance, rely on this sunlight for photosynthesis, which is essential for their growth and survival. Animals, too, are influenced by the diurnal circle; many species have adapted their behaviors according to the time of day, becoming active during daylight hours while resting at night.As the sun continues its ascent, it reaches its zenith at noon, casting the shortest shadows and providing the most intense light. This peak moment of the diurnal circle is crucial for various activities, especially in agriculture. Farmers often plan their planting and harvesting schedules around this solar cycle, ensuring that crops receive adequate sunlight for optimal growth. The interplay between the sun's position and agricultural practices illustrates how deeply intertwined human life is with the natural world.However, the diurnal circle is not solely about productivity; it also plays a significant role in human well-being. The natural light that accompanies the sun's journey affects our mood, energy levels, and overall health. Research has shown that exposure to sunlight can boost serotonin levels in the brain, leading to improved mood and cognitive function. Conversely, the absence of light during the night triggers the production of melatonin, a hormone that regulates sleep patterns. This delicate balance between light and darkness is essential for maintaining a healthy lifestyle.As the day progresses, the sun begins to descend in the western sky, signaling the approach of evening. This transition from day to night is marked by stunning sunsets, which are often celebrated for their beauty. The fading light of the diurnal circle serves as a reminder of the day's end, prompting many to reflect on their experiences and accomplishments. It is a time for relaxation and winding down, as the world prepares for the nighttime hours.Eventually, darkness envelops the landscape, and the diurnal circle completes its cycle. The night brings its own set of rhythms and activities. Nocturnal creatures emerge, taking advantage of the cooler temperatures and the cover of darkness. For humans, nighttime offers an opportunity for rest and rejuvenation, allowing us to recharge for the next day.In conclusion, the diurnal circle is more than just a scientific term; it encapsulates the essence of life on Earth. From the way plants grow to how animals behave and how humans live, this daily cycle shapes our existence in countless ways. By understanding and respecting the diurnal circle, we can foster a deeper connection with nature and promote a harmonious coexistence with the environment.

“昼夜循环”这一概念指的是太阳在天空中一天内的显著运动，形成了光明与黑暗的循环，定义了我们的日常生活。这个现象不仅仅是一个简单的观察；它对地球上生活的各个方面，包括生态、农业，甚至人类心理，都有深远的影响。理解“昼夜循环”有助于我们欣赏自然的复杂平衡以及支配我们存在的节奏。每个早晨，当太阳从东方升起时，它开始了在天空中的旅程，照亮了周围的世界。这轮升起的太阳标志着一天的开始，带来了温暖和光明，唤醒了植物和动物。例如，植物依赖这种阳光进行光合作用，这是它们生长和生存所必需的。动物也受到“昼夜循环”的影响；许多物种根据一天的时间调整它们的行为，在白天活跃，而在夜间休息。随着太阳不断上升，它在正午时达到顶峰，投射出最短的影子，提供最强烈的光线。这一“昼夜循环”的巅峰时刻对各种活动至关重要，尤其是在农业方面。农民通常根据这一太阳周期来规划他们的种植和收获时间表，以确保作物获得足够的阳光以实现最佳生长。太阳的位置与农业实践之间的相互作用说明了人类生活与自然世界之间的密切联系。然而，“昼夜循环”不仅仅关乎生产力；它在人的健康福祉中也扮演着重要角色。伴随太阳旅程而来的自然光影响着我们的情绪、能量水平和整体健康。研究表明，暴露在阳光下可以提高大脑中的血清素水平，从而改善情绪和认知功能。相反，夜晚缺乏光线会刺激褪黑激素的产生，这是一种调节睡眠模式的激素。这种光与暗之间的微妙平衡对于维持健康的生活方式至关重要。随着一天的推移，太阳开始在西方天空中下降，预示着傍晚的到来。这种从白天到夜晚的过渡以壮观的日落为标志，通常因其美丽而受到赞美。“昼夜循环”渐渐消失的光芒提醒人们一天的结束，促使许多人反思他们的经历和成就。这是放松和缓解压力的时刻，世界也在为夜间时光做好准备。最终，黑暗笼罩了景观，“昼夜循环”完成了它的周期。夜晚带来了自己的一系列节奏和活动。夜行性生物出现，利用较凉爽的温度和黑暗的掩护。对人类来说，夜间提供了休息和恢复的机会，使我们能够为第二天充电。总之，“昼夜循环”不仅仅是一个科学术语；它概括了地球上生命的本质。从植物的生长到动物的行为，再到人类的生活，这一日常循环以无数种方式塑造了我们的存在。通过理解和尊重“昼夜循环”，我们可以促进与自然的更深层次的联系，并推动与环境的和谐共存。