absorption spectrum

简明释义

吸收频谱

英英释义

例句

1.The absorption spectrum of chlorophyll is crucial for understanding photosynthesis.

叶绿素的吸收光谱对理解光合作用至关重要。

2.Astronomers use the absorption spectrum to study the atmospheres of distant planets.

天文学家使用吸收光谱来研究遥远行星的气氛。

3.By studying the absorption spectrum, researchers can determine the presence of certain elements in a gas.

通过研究吸收光谱，研究人员可以确定气体中某些元素的存在。

4.The scientist analyzed the absorption spectrum to identify the chemical composition of the star.

科学家分析了吸收光谱以确定星星的化学成分。

5.The absorption spectrum of a substance can provide valuable information about its molecular structure.

一种物质的吸收光谱可以提供有关其分子结构的宝贵信息。

作文

The concept of the absorption spectrum is fundamental in the field of spectroscopy, which studies how matter interacts with electromagnetic radiation. When light passes through a substance, certain wavelengths are absorbed by the atoms or molecules within that substance. This results in a unique pattern of absorbed wavelengths, known as the absorption spectrum (吸收谱). Each element has its own distinct absorption spectrum, acting like a fingerprint that can be used to identify the presence of that element in a sample. To understand this concept better, consider a simple example involving a prism. When white light passes through a prism, it disperses into its component colors, creating a rainbow effect. However, if you were to shine white light through a gas, such as hydrogen, and then observe the light that comes out on the other side, you would notice that some colors are missing. These missing colors correspond to specific wavelengths that the hydrogen gas absorbed. The resulting pattern of absorbed wavelengths forms the absorption spectrum (吸收谱) of hydrogen.The absorption spectrum is not only useful for identifying elements but also for understanding the physical conditions of stars and galaxies. Astronomers analyze the light emitted from distant celestial bodies, looking for specific absorption spectra (吸收谱) that indicate the presence of various elements, such as hydrogen, helium, and heavier metals. By studying these spectra, they can infer temperature, density, mass, distance, luminosity, and relative motion of these astronomical objects.Moreover, the absorption spectrum (吸收谱) plays a crucial role in various applications beyond astronomy. In chemistry, it is used to determine the concentration of substances in a solution. By measuring how much light is absorbed at specific wavelengths, chemists can quantify the amount of a particular compound present. This technique is often employed in environmental monitoring, pharmaceuticals, and food safety testing.In addition to its scientific applications, the absorption spectrum (吸收谱) also has implications in technology. For instance, the development of solar cells relies on understanding how materials absorb light. Engineers study the absorption spectrum of different photovoltaic materials to optimize their efficiency in converting sunlight into electricity.In summary, the absorption spectrum (吸收谱) is a powerful tool in both theoretical and practical applications across various fields. Its ability to reveal the composition of substances and provide insights into physical processes makes it an invaluable aspect of modern science. As we continue to explore the universe and develop new technologies, the understanding of the absorption spectrum will remain central to many scientific advancements.

吸收谱的概念在光谱学领域中是基础性的，光谱学研究物质如何与电磁辐射相互作用。当光通过一种物质时，某些波长被该物质中的原子或分子吸收。这导致了一个独特的被吸收波长模式，这就是所谓的吸收谱（absorption spectrum）。每种元素都有自己独特的吸收谱，像指纹一样可以用来识别样品中该元素的存在。为了更好地理解这个概念，可以考虑一个简单的例子，涉及一个棱镜。当白光通过棱镜时，它会分散成其组成颜色，形成彩虹效果。然而，如果你将白光照射到氢气等气体上，然后观察从另一侧出来的光，你会注意到某些颜色缺失。这些缺失的颜色对应于氢气吸收的特定波长。由此产生的被吸收波长模式形成了氢的吸收谱。吸收谱不仅对识别元素有用，还对理解恒星和星系的物理条件至关重要。天文学家分析来自遥远天体的光，寻找特定的吸收谱，以指示各种元素的存在，如氢、氦和重金属。通过研究这些光谱，他们可以推断出这些天体的温度、密度、质量、距离、亮度和相对运动。此外，吸收谱在超越天文学的各种应用中也发挥着重要作用。在化学中，它用于确定溶液中物质的浓度。通过测量在特定波长下吸收的光量，化学家可以量化特定化合物的存在量。这种技术通常用于环境监测、制药和食品安全检测。除了科学应用外，吸收谱在技术方面也有影响。例如，太阳能电池的发展依赖于理解材料如何吸收光。工程师研究不同光伏材料的吸收谱，以优化它们将阳光转化为电能的效率。总之，吸收谱是理论和实践应用中一个强大的工具，涵盖多个领域。它揭示物质组成和提供物理过程洞察的能力使其成为现代科学中不可或缺的方面。随着我们继续探索宇宙和开发新技术，对吸收谱的理解将始终是许多科学进步的核心。