Word · Frequency #21115
prism
棱柱
核心释义
prism
- 1.
一种多面体,两端为形状和大小相同的平行多边形,其余面为平行四边形的侧面。
A polyhedron with parallel ends of the same polygonal shape and size, the other faces being parallelogram-shaped sides.
- 2.
有两个全等平行底面,侧面为平行四边形的多面体
a polyhedron with two congruent and parallel faces (the bases) and whose lateral faces are parallelograms
- 3.
一种后向反射器,通常安装在测量杆上,作为全站仪的目标,用于测量距离。
A retroreflector (“device which reflects light back to its source with minimal scattering”) which is usually attached to a surveying pole as a target for a total station which emits a light beam at the device and calculates how long it takes to be reflected back in order to measure distance.
- 4.
三角形截面的玻璃或石英光学器件,用于偏折光束或使图像倒转
optical device having a triangular shape and made of glass or quartz; used to deviate a beam or invert an image
- 5.
影响感知的视角。
A perspective that colours one's perception.
一种多面体,两端为形状和大小相同的平行多边形,其余面为平行四边形的侧面。；有两个全等平行底面,侧面为平行四边形的多面体；一种后向反射器,通常安装在测量杆上,作为全站仪的目标,用于测量距离。；三角形截面的玻璃或石英光学器件,用于偏折光束或使图像倒转；影响感知的视角。
用法In use
A triangular prism has five faces: two triangular bases and three rectangular sides.
用法提示：prism 作名词，指三棱柱，句中用单数形式。
In our geometry class, we calculated the volume of a rectangular prism by multiplying length, width, and height.
用法提示：prism 作名词，与 rectangular 搭配表示矩形棱柱。
The teacher asked us to draw a prism and label its bases and lateral faces.
用法提示：prism 作名词，指几何棱柱体。
a [adjective] prism
prism 是可数名词，前面可加形容词修饰；triangular prism 是几何学中的常用术语。
A triangular prism has two triangular bases.
三棱柱有两个三角形的底面。
pass through a prism
表示光穿过棱镜时，常用 pass through a prism；也可说 go through a prism。
相关词与表达Connections
搭配Collocations
- triangular prism
- 三棱柱
- A triangular prism has five faces.三棱柱有五个面。
- rectangular prism
- 长方体
- A rectangular prism has six faces.长方体有六个面。
- surface area of a prism
- 棱柱的表面积
- Calculate the surface area of a prism.计算棱柱的表面积。
- base of a prism
- 棱柱的底面
- The base of a prism can be any polygon.棱柱的底面可以是任意多边形。
- regular prism
- 正棱柱
学习提示Learner notes
记忆技巧Memory Tip
记忆联想：三棱镜把白光散成彩虹，形状像三角尺；prism 中的 ris 像 rise，象征彩虹在棱镜中升起。
语境与语域Context & Register
语域：neutral 常见场景：geometry textbook、math class、technical descriptions 该义项（棱柱）为数学术语，通常出现在教材、几何题和正式说明中，语气中性偏正式；日常口语中不太常用，多用于书面或课堂教学。
发音与拼写Pronunciation & Spelling
prism /ˈprɪzəm/ 与 schism /ˈskɪzəm/ 押韵：都以 /zəm/ 结尾。形近词 prison /ˈprɪzən/、prissy /ˈprɪsi/、prize /praɪz/ 尽管开头拼写相似，但结尾或元音不同，并不押韵。注意 -ism 在 prism 中读 /ɪzəm/，不是 /ɪsm/。
一起学习词形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.