Word · Frequency #26949
diffractions
衍射
diffractions is the plural of diffraction.
the deflection of light rays passing near sharp edges or through narrow slits, producing fringes of light and dark bands
- 1.
The bending of a wave around an obstacle.
波绕过障碍物的弯曲。
- 2.
The breaking up of an electromagnetic wave as it passes a geometric structure (e.g. a slit), followed by reconstruction of the wave by interference.
电磁波通过几何结构(如狭缝)时被分解,随后通过干涉重建的现象。
波绕过障碍物的弯曲。；电磁波通过几何结构(如狭缝)时被分解,随后通过干涉重建的现象。；衍射；[化] 衍射
In use
The rainbow colors on the back of a CD are caused by the diffraction of light.
When a laser beam passes through a narrow slit, diffraction makes the beam spread out.
We observed the diffraction of light around a razor blade's edge in the physics lab.
the diffraction of [light/waves]
of 后接衍射的对象；diffraction 通常作不可数名词。
The diffraction of light can be observed when it passes around a sharp edge.
当光绕过锐利边缘时，可以观察到光的衍射。
diffraction through [a narrow slit/an aperture]
through 后接衍射发生的通道，如狭缝或小孔。
Diffraction through a narrow slit creates a series of bright and dark bands.
通过狭缝的衍射会产生一系列明暗条纹。
Connections
Collocations
- X-ray diffraction
- X射线衍射
- X-ray diffraction is used to determine the structure of crystals.X射线衍射用于测定晶体的结构。
- diffraction grating
- 衍射光栅
- A diffraction grating splits light into its component colors.衍射光栅将光分解为其组成颜色。
- diffraction pattern
- 衍射图案
- The diffraction pattern appeared as alternating bright and dark bands.衍射图案呈现明暗相间的条纹。
- electron diffraction
- 电子衍射
- Electron diffraction reveals the arrangement of atoms in a material.电子衍射揭示了材料中原子的排列。
- single-slit diffraction
- 单缝衍射
- Single-slit diffraction produces a central bright band.单缝衍射产生中央亮带。
Learner notes
Memory Tip
记忆：diffraction像di+fraction（分数），光被狭缝“分成”明暗相间的条纹，即衍射。
Context & Register
语域：formal 常见场景：物理教材、学术论文、科普讲解 这是物理/光学领域的专业术语，通常用于教材、学术论文或科普讲解等正式场合，多出现在科学讨论中；日常口语里很少使用。
Pronunciation & Spelling
这些词都以 /ækʃən/ 收尾，与 diffraction 押韵。注意 fiction /ˈfɪkʃən/ 拼写相似，但元音为 /ɪ/，与 diffraction 不押韵；拼写相近并不等于发音相同。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.