diffraction

简明释义

英[dɪˈfrækʃn]美[dɪˈfrækʃn]

n. （光，声等的）衍射，绕射

英英释义

单词用法

同义词

反义词

例句

1.A lot of grating messages including its profile can be derived from diffraction spectrum of grating according to Fourier optical theory.

根据傅立叶光学理论从光栅的衍射频谱中可以反推光栅本身的多种信息，包括其形貌特征。

2.Meanwhile, such parameters as diffraction efficiency, deflection Angle and driving power of device have been analyzed and computed theoretically.

有效声孔径。电极厚度以及器件的声光衍射效率、偏转角度、声驱动功率等参数。

3.The uncertainty principle can account for diffraction.

测不准原理可以说明衍射。

4.One is a system that tracks the whereabouts of the audience's heads. The other is a novel diffraction technique, known as holographic projection.

一个是能够跟踪观众头部位置的装置，一个是一种新的衍射技术，称之为全息投影。

5.The boat conformation of its geometric isomer, dysamide C (2) studied by X-ray diffraction analysis is described.

描述了通过X 射线衍射分析研究的其几何异构体dysamideC（2）的船形。

6.A fundamental limit is imposed by the size of the diffraction disk of the telescope.

一个基本的极限是由望远镜衍射园面的大小决定的。

7.As a result, he got the distances of the stars too short by a factor of thousands (see 'Galileo duped by diffraction').

结果，因为很多的干扰因素，他所测得的星体间距比实际的短。

8.In optics, diffraction limits the resolution of imaging systems.

在光学中，衍射限制了成像系统的分辨率。

9.The phenomenon of diffraction is observed when light passes through a narrow slit.

当光通过狭缝时，会观察到衍射现象。

10.The diffraction of sound waves can create interesting acoustic effects in large spaces.

声波的衍射可以在大空间中产生有趣的声学效果。

11.Scientists use diffraction patterns to determine the structure of crystals.

科学家使用衍射图样来确定晶体的结构。

12.When observing stars, astronomers must account for diffraction caused by the telescope's aperture.

在观察星星时，天文学家必须考虑望远镜光圈造成的衍射。

作文

Diffraction is a fundamental concept in the field of physics, particularly in the study of waves. It refers to the bending and spreading of waves when they encounter an obstacle or pass through a narrow opening. This phenomenon can be observed with various types of waves, including sound waves, light waves, and water waves. Understanding diffraction (衍射) is essential for explaining how waves interact with their environment and each other.One of the most common examples of diffraction (衍射) occurs with light. When light passes through a small slit, it does not simply travel in a straight line; instead, it spreads out and creates a pattern of light and dark fringes on a screen placed behind the slit. This behavior can be explained by the wave nature of light, which was famously demonstrated by Thomas Young's double-slit experiment in the early 19th century. In this experiment, light passing through two closely spaced slits creates an interference pattern that is characteristic of wave behavior, further supporting the idea of diffraction (衍射).In addition to light, sound waves also exhibit diffraction (衍射). For instance, when you speak near a corner or an object, your voice can be heard even if the listener is not in a direct line of sight. This is because the sound waves bend around the obstacle, allowing them to reach the listener's ears. This property of sound diffraction (衍射) is utilized in various applications, such as designing concert halls and auditoriums to ensure optimal sound distribution.The study of diffraction (衍射) has significant implications in many scientific fields, including optics, acoustics, and even quantum mechanics. In optics, diffraction (衍射) plays a crucial role in the design of optical instruments like microscopes and telescopes. These instruments rely on the ability to manipulate light and improve resolution by considering the effects of diffraction (衍射).Moreover, diffraction (衍射) is not limited to just waves; it can also extend to particles. In quantum mechanics, particles such as electrons can exhibit diffraction (衍射) patterns similar to those of waves, demonstrating the dual nature of matter. This phenomenon is essential in understanding the behavior of particles at a microscopic level and has led to advancements in technologies such as electron microscopy.In conclusion, diffraction (衍射) is a vital concept that illustrates the wave-like behavior of various types of waves, including light and sound. Its effects are observable in everyday life, from the way we hear sounds around corners to the intricate patterns created by light passing through slits. The study of diffraction (衍射) not only enhances our understanding of wave interactions but also has practical applications in technology and science. As we continue to explore the universe, the principles of diffraction (衍射) will undoubtedly play a crucial role in expanding our knowledge and capabilities in wave-related phenomena.

衍射是物理学领域的一个基本概念，特别是在波动研究中。它指的是当波遇到障碍物或通过狭窄开口时的弯曲和扩散现象。这种现象可以在各种类型的波中观察到，包括声波、光波和水波。理解衍射对于解释波与其环境及彼此之间的相互作用至关重要。最常见的衍射例子发生在光的传播上。当光通过一个小缝隙时，它并不是简单地沿直线传播，而是会扩散并在放置在缝隙后面的屏幕上形成明暗条纹的图案。这种行为可以用光的波动性质来解释，这一现象在19世纪初由托马斯·杨的双缝实验中得到了著名的展示。在这个实验中，光通过两个紧密间隔的缝隙产生了干涉图案，这是波动行为的特征，进一步支持了衍射的观点。除了光，声波也表现出衍射的特性。例如，当你在一个角落或物体附近说话时，即使听者不在直接视线范围内，他们也能听到你的声音。这是因为声波绕过障碍物弯曲，从而使它们能够到达听者的耳朵。这种声波衍射的特性在各种应用中得到了利用，例如设计音乐厅和礼堂，以确保最佳的声音分布。对衍射的研究在许多科学领域有着重要的意义，包括光学、声学甚至量子力学。在光学中，衍射在光学仪器如显微镜和望远镜的设计中起着至关重要的作用。这些仪器依赖于操控光线并通过考虑衍射的影响来提高分辨率。此外，衍射不仅限于波动；它也可以扩展到粒子。在量子力学中，电子等粒子可以表现出类似于波的衍射图案，展示了物质的双重性质。这种现象对于理解微观层面粒子的行为至关重要，并已导致电子显微镜等技术的进步。总之，衍射是一个重要的概念，它展示了光、声等各种波动的波动性行为。其效果在日常生活中可见，从我们如何听到绕过角落的声音，到光通过缝隙形成的复杂图案。对衍射的研究不仅增强了我们对波动相互作用的理解，而且在技术和科学中具有实际应用。随着我们继续探索宇宙，衍射的原理无疑将在扩展我们对波动现象的知识和能力中发挥关键作用。