angular width

简明释义

角宽度;

英英释义

例句

1.The angular width 角宽 of a laser beam can affect its focus and clarity.

激光束的角宽会影响其聚焦和清晰度.

2.In photography, understanding the angular width 角宽 helps in framing the subject correctly.

在摄影中，理解角宽有助于正确构图主题.

3.The angular width 角宽 of the moon appears larger when it is near the horizon.

当月亮靠近地平线时，它的角宽看起来更大.

4.Astronomers often calculate the angular width 角宽 of stars to determine their sizes.

天文学家经常计算星星的角宽以确定它们的大小.

5.The telescope can measure the angular width 角宽 of distant galaxies.

这台望远镜可以测量遥远星系的角宽.

作文

In the field of astronomy and physics, understanding the concept of angular width is crucial for interpreting various celestial phenomena. The term angular width refers to the apparent size of an object as seen from a specific point, measured in degrees or radians. This measurement is essential when observing distant stars, galaxies, or even planets within our solar system. For instance, when we look at the moon, its angular width helps us comprehend how large it appears in the night sky compared to other celestial bodies. When astronomers calculate the angular width of an object, they often use a formula that involves the actual size of the object and its distance from the observer. The basic formula is given by: Angular Width (radians) = Actual Size / Distance This simple yet powerful equation allows scientists to quantify how large an object appears from a given viewpoint. For example, the sun has an actual diameter of about 1.4 million kilometers, and when viewed from Earth, its angular width is approximately 0.5 degrees. This means that if you were to extend your arm and hold up your thumb, the width of your thumb would roughly match the sun's apparent size in the sky. The significance of angular width extends beyond mere observation; it plays a vital role in various applications, including navigation, photography, and even virtual reality. In photography, understanding the angular width of a scene can help photographers choose the right lens and framing for their shots. A wide-angle lens captures a larger angular width, allowing more of the scene to fit into the photograph, while a telephoto lens captures a narrower angular width, focusing on distant subjects. Moreover, in the realm of virtual reality, the concept of angular width is critical in creating immersive experiences. Developers must consider the angular width of the virtual environment to ensure that users perceive depth and spatial relationships accurately. If the angular width is not calibrated correctly, users may experience discomfort or disorientation while navigating the virtual space. In conclusion, the concept of angular width is a fundamental aspect of both scientific inquiry and practical applications. Whether it is used to measure the size of celestial objects, enhance photographic techniques, or create engaging virtual environments, understanding angular width enriches our comprehension of the world around us. As we continue to explore the universe and develop new technologies, the importance of this seemingly simple measurement will undoubtedly grow, leading to new discoveries and innovations in various fields. Ultimately, grasping the significance of angular width empowers us to appreciate the beauty and complexity of our surroundings, whether we are gazing at the stars or capturing moments through a camera lens.

在天文学和物理学领域，理解“角宽度”这一概念对于解释各种天体现象至关重要。术语“角宽度”指的是从特定点观察物体时的表观大小，以度或弧度为单位进行测量。这一测量在观察遥远的恒星、星系甚至我们太阳系内的行星时至关重要。例如，当我们看月亮时，其“角宽度”帮助我们理解它在夜空中与其他天体相比的大小。当天文学家计算一个物体的“角宽度”时，他们通常使用一个涉及物体实际大小和距离观察者的公式。基本公式为：角宽度（弧度）= 实际大小 / 距离这个简单而强大的方程使科学家能够量化从给定视点观察到的物体的大小。例如，太阳的实际直径约为140万公里，而从地球上看，其“角宽度”大约为0.5度。这意味着如果你伸出手臂并竖起大拇指，拇指的宽度大致与太阳在天空中的表观大小相匹配。“角宽度”的意义超越了单纯的观察；它在导航、摄影甚至虚拟现实等各种应用中发挥着至关重要的作用。在摄影中，理解场景的“角宽度”可以帮助摄影师选择合适的镜头和构图。广角镜头捕捉更大的“角宽度”，允许更多场景融入照片，而长焦镜头则捕捉较窄的“角宽度”，专注于远处的对象。此外，在虚拟现实领域，“角宽度”的概念对创造身临其境的体验至关重要。开发人员必须考虑虚拟环境的“角宽度”，以确保用户准确感知深度和空间关系。如果“角宽度”未正确校准，用户在浏览虚拟空间时可能会感到不适或迷失方向。总之，“角宽度”的概念是科学探究和实际应用的基本方面。无论是用于测量天体的大小、增强摄影技术，还是创造引人入胜的虚拟环境，理解“角宽度”都丰富了我们对周围世界的理解。随着我们继续探索宇宙并开发新技术，这一看似简单的测量的重要性无疑会增长，推动各个领域的新发现和创新。最终，掌握“角宽度”的重要性使我们能够欣赏周围环境的美丽和复杂性，无论是在仰望星空还是通过相机镜头捕捉瞬间。