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number + volts
The battery provides 12 volts.
这块电池提供12伏特。
伏特（电压单位）
先理解核心含义，再看它在真实句子里的用法。
伏特（电压单位）
the SI derived unit of electrical potential and electromotive force (voltage)
The battery provides 12 volts.
这块电池提供12伏特。
国际单位制中电势和电动势的导出单位,符号: V
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
泛欧政党Volt Europa。
The pan-European party 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。
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
一种亮黄绿色,常用于耐克产品
A bright yellow-green colour often used in Nike products.
A standard car battery produces about 12 volts.
标准汽车电池产生约12伏特的电压。
The electrician checked whether the outlet was supplying the expected 220 volts.
电工检查了插座是否供应预期的220伏特电压。
You can measure the potential difference in volts using a multimeter.
你可以用万用表以伏特为单位测量电势差。
The battery provides 12 volts.
这块电池提供12伏特。
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。
The voltage is measured in volts.
电压以伏特为单位测量。
This device requires a voltage of 220 volts.
这个设备需要220伏特的电压。
Not this
The volt of this battery is 12.
Use this
The voltage of this battery is 12 volts.
volt是指伏特这个单位，而voltage指电压（电势差）。在描述数值时应使用voltage，并用复数volts表示具体伏特数。
Not this
I need a 12 volts car battery.
Use this
I need a 12-volt car battery.
当volt与其他名词构成复合形容词时，应使用单数形式（12-volt），即使数字大于1。复数volts仅用于单独作名词。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
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伏电池
The radio takes a 9-volt battery.
这台收音机使用一节9伏电池。
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。
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。
致命的不是伏特，而是安培。
A single bolt of lightning can carry hundreds of millions of volts.
一道闪电可携带数亿伏特的电压。
Use volt naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
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。
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。
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。
Dictionary facts from ECDICT, WIKTIONARY.