Word · Frequency #31071
resistivity
电阻率
核心释义
A measure of how strongly a material opposes electric current, equal to the resistance of a unit cube of the material at a given temperature, expressed in ohm-metres.
- 1.
给定材料在单位长度立方体中的电阻,以欧姆·米(Ωm)为单位
The resistance offered at a particular temperature by an electrical conductor of any given material in a cube of unit length, expressed in ohm-metres (Ωm) in the metric system of measurement.
- 2.
热导率的倒数,SI单位为米·开尔文·瓦特−1
The reciprocal of thermal conductivity, having SI unit: m K W−1
热阻率；给定材料在单位长度立方体中的电阻,以欧姆·米(Ωm)为单位；热导率的倒数,SI单位为米·开尔文·瓦特−1；抵抗力；电阻系数；[化] 电阻率
用法In use
The resistivity of copper is very low, making it an excellent conductor.
用法提示：resistivity 为名词，在此句中表示材料的电阻率，指阻碍电流流动的特性。
Engineers must consider the resistivity of soil when designing grounding systems.
用法提示：resistivity 为名词，表示土壤的电阻率，用于工程设计。
Different materials have different resistivities, which affects their use in electronics.
用法提示：resistivities 为名词复数形式，表示多种材料的电阻率。
high/low resistivity
修饰电阻率的高低。
Copper has low resistivity.
铜的电阻率低。
resistivity of [material]
表示某物质的电阻率。
相关词与表达Connections
易混词Confusing words
- resistance
- 电阻 · 电阻率是材料固有特性，与形状无关；电阻是具体物体的整体阻碍，取决于材料、长度和截面积。
- resistor
- 电阻器 · 电阻率是材料的物理量；电阻器是用于提供特定电阻值的电子元件。
词族Word family
- resist
- 抵抗；抵挡 · v.
- resistance
- 抵抗；电阻 · n.
学习提示Learner notes
语法说明Grammar Note
通常不可数，但可指不同物质的电阻率时用复数resistivities。
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.