Word · Frequency #23190
insulator
绝缘体
a material that does not conduct electricity or heat well
- 1.
A substance that does not transmit heat (thermal insulator), sound (acoustic insulator) or electricity (electrical insulator).
不传导热(热绝缘体)、声(声绝缘体)或电(电绝缘体)的物质。
- 2.
A non-conductive structure, coating or device that does not transmit sound, heat or electricity (see image)
不传导声、热或电的非导电结构、涂层或装置(见图)。
- 3.
A person who installs insulation.
安装绝缘材料的人。
不传导热(热绝缘体)、声(声绝缘体)或电(电绝缘体)的物质。；不传导声、热或电的非导电结构、涂层或装置(见图)。；安装绝缘材料的人。；从事绝缘工作的工人；[化] 绝缘体; 绝缘器; 绝缘子; 隔离剂
In use
Rubber is a good insulator, so it is often used to cover electrical wires.
The ceramic insulator on the power pole prevents electricity from leaking into the ground.
Thick wool can act as an insulator, keeping warmth inside your coat.
be an insulator
用于说明材料具备绝缘性质；insulator 前可加 good、electrical、thermal 等形容词。
Plastic is an insulator, so it does not conduct electricity.
塑料是绝缘体，因此不导电。
act as an insulator
act as 强调“起……作用”，后接表示用途或身份的名词。
The air gap acts as an insulator against heat loss.
空气间隙起到隔热体的作用，防止热量散失。
use sth as an insulator
as 后接 insulator；如需说明具体性质，可在 insulator 前加形容词，如 an effective insulator。
Connections
Collocations
- electrical insulator
- 电绝缘体
- Rubber is commonly used as an electrical insulator.橡胶常被用作电绝缘体。
- thermal insulator
- 绝热体；热绝缘体
- Mineral wool is an effective thermal insulator.矿棉是有效的绝热体。
- porcelain insulator
- 瓷绝缘子
- Porcelain insulators support high-voltage wires.瓷绝缘子支撑着高压电线。
- glass insulator
- 玻璃绝缘体
- A glass insulator prevents current from leaking.玻璃绝缘体防止电流泄漏。
- good insulator
- 良好的绝缘体
- Plastic is a good insulator, so it is used to coat wires.塑料是良好的绝缘体，因此用于包裹电线。
- act as an insulator
Learner notes
Memory Tip
把“insulate（隔绝）”加上表示物体的“-or”，联想“把电或热隔绝在里面的物体”就是绝缘体。
Context & Register
语域：formal 常见场景：电气工程、材料科学、物理实验 通常用于正式或技术语境，多出现在电气工程、材料科学等专业讨论中；日常口语较少用到。
Pronunciation & Spelling
这组词和 insulator 一样以 -ator 结尾，末尾都读 /eɪtə/（美式英语常读 /eɪtər/）。注意 senator /ˈsenətə/ 拼写相近，但末尾并不读 /eɪtə/。
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.