octahedron

美 { "us": "", "uk": "" }
英 { "us": "", "uk": "" }
数据源: ai_enrichment
八面体是一种几何形状,由八个平面三角形面组成,常见于数学、晶体学和设计领域。

用法要点

句型搭配

通常用作可数名词,描述具体的八面体对象,常用于数学或科学语境中。

• a regular octahedron
• the octahedron has eight faces
• construct an octahedron

介词用法

常与介词'in'、'of'、'with'搭配,表示位置、组成或特征。

• in the shape of an octahedron
• the symmetry of an octahedron
• a crystal with octahedron structure

语域说明

主要用于学术、科学和技术领域,日常对话中较少使用,除非讨论几何或设计话题。

• in geometry class
• scientific paper on crystals
• architectural design discussion

基础例句

In math class, we learned how to draw an octahedron on paper.

在数学课上,我们学习了如何在纸上画一个八面体。

The crystal I found has a beautiful octahedron shape.

我找到的这颗晶体有一个漂亮的八面体形状。

Can you help me build an octahedron with these sticks?

你能帮我用这些棍子搭一个八面体吗?

高级例句

The mineral's atomic arrangement forms a perfect octahedron, which is key to its properties.

这种矿物的原子排列形成了一个完美的八面体,这是其性质的关键。

In architecture, the octahedron is often used as a base for complex structural designs.

在建筑学中,八面体常被用作复杂结构设计的基础。

The research paper analyzes the symmetry groups of the regular octahedron in detail.

这篇研究论文详细分析了正八面体的对称群。

高频搭配

verb

constructdescribecalculatevisualizeanalyze

adjective

regularirregularperfectcrystalgeometric

noun

facevertexedgesymmetrystructure

adverb

perfectlygeometricallysymmetricallyaccurately

preposition

inofwithlikeas

phrase

shape of an octahedronoctahedron structureregular octahedroncrystal octahedron

常见错误

❌ 错误:I saw an octahedron shape rock.
✓ 正确:I saw a rock with an octahedron shape.

错误用法中'shape'作为名词修饰'rock'不自然,正确用法使用'with'短语更地道,表示'具有八面体形状的岩石'。

❌ 错误:The octahedron are common in geometry.
✓ 正确:The octahedron is common in geometry.

'octahedron'是单数名词,动词应用'is',错误用法中使用了复数动词'are',这是中文学习者常犯的主谓一致错误。

近义词辨析

polyhedron

'polyhedron'是泛指多面体的通用术语,而'octahedron'特指有八个面的多面体,更具体。

A cube is a polyhedron, but an octahedron has exactly eight triangular faces.

diamond

'diamond'在晶体学中可指八面体形状的晶体,但更常指钻石或菱形;'octahedron'是纯几何术语,不限于特定材料。

The diamond crystal often forms an octahedron, but not all octahedrons are diamonds.