Word · Frequency #12526
volt
伏特（电压单位）
the SI derived unit of electrical potential and electromotive force (voltage)
- 1.
In the International System of Units, the derived unit of electrical potential and electromotive force (voltage); the potential difference across a conductor when a current of one ampere uses one watt of power. Symbol: V
国际单位制中电势和电动势的导出单位,符号: V
- 2.
The pan-European party Volt Europa.
泛欧政党Volt Europa。
- 3.
a unit of potential equal to the potential difference between two points on a conductor carrying a current of 1 ampere when the power dissipated between the two points is 1 watt; equivalent to the potential difference across a resistance of 1 ohm when 1 ampere of current flows through it
电势单位,等于1安培电流通过1欧姆电阻时的电势差,或1安培电流流过导体两点间消耗1瓦特功率时的电势差。
- 4.
A bright yellow-green colour often used in Nike products.
一种亮黄绿色,常用于耐克产品
- 5.
A bright yellow-green colour often used in Nike products.；volt:
一种亮黄绿色,常用于耐克产品
亮黄绿色；Volt Europa（泛欧洲政党）；国际单位制中电势和电动势的导出单位,符号: V；泛欧政党Volt Europa。；电势单位,等于1安培电流通过1欧姆电阻时的电势差,或1安培电流流过导体两点间消耗1瓦特功率时的电势差。
In use
A standard car battery produces about 12 volts.
The electrician checked whether the outlet was supplying the expected 220 volts.
You can measure the potential difference in volts using a multimeter.
number + volts
The battery provides 12 volts.
这块电池提供12伏特。
number-volt + noun
在名词前作定语时，volt用单数形式。
I need a 9-volt battery.
我需要一节9伏电池。
measured in volts
The voltage is measured in volts.
电压以伏特为单位测量。
Connections
Collocations
- electron volt
- 电子伏特
- The energy of the photon was measured in electron volts.光子的能量以电子伏特为单位测量。
- 9-volt battery
- 9伏电池
- The radio takes a 9-volt battery.这台收音机使用一节9伏电池。
- volt-ampere
- 伏安（视在功率单位）
- The power supply is rated at 500 volt-amperes.这个电源的额定功率为500伏安。
- volts per meter
- 伏特每米（电场强度单位）
- The antenna measures the signal in volts per meter.天线以伏特每米为单位测量信号强度。
Pop culture & quotes
- It's not the volts that kill you; it's the amps.
- 致命的不是伏特，而是安培。A single bolt of lightning can carry hundreds of millions of volts.
Learner notes
Memory Tip
volt 读音近“沃尔特”,想象电工沃尔特用电压表:1伏特=1安培×1欧姆,记住它是电压单位。
Context & Register
语域：mixed 常见场景：物理或电子工程教材、产品规格或说明书中、日常谈论电池或电器电压 伏特作为国际单位制的标准单位，在正式科技文献和日常谈论电器时都比较常见；正式程度会随语境略有变化，但通常不需要刻意回避。注意此处指电势单位，不是政党名称。
Pronunciation & Spelling
与 volt /voʊlt/ 押韵的词均以 -olt 结尾：bolt, colt, jolt, dolt, molt（美式），读作 /oʊlt/。注意：vault, salt, fault, halt 等以 -alt 结尾的词读 /ɔːlt/，不与 volt 押韵。
Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
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.