watt
watt — 名詞
1. a standard unit for measuring how much electrical power a device uses or produce
瓦特
量度電功率的標準單位
a standard unit for measuring how much electrical power a device uses or produces — for example, a 60-watt light bulb uses 60 watts of power.
The old 60-watt bulb used more power than the new 10-watt LED one.
那顆老舊的60瓦燈泡比新的10瓦LED燈泡耗電更多。
modifier form: 60-watt / 10-watt
David checked the watt rating on the microwave before plugging it in.
David 在插上插頭前檢查了微波爐的瓦數標示。
collocation: watt rating
A typical hair dryer uses around 1,500 watts of electricity.
一般吹風機大約耗電1500瓦。
collocation: X watts of electricity
Wren swapped the 40-watt bulbs for 8-watt LEDs to save energy.
Wren 把40瓦的燈泡換成8瓦的LED燈泡以節省能源。
This solar panel can produce up to 300 watts in full sunlight.
這塊太陽能板在充足日照下可產生高達300瓦的電力。
collocation: produce X watts
- rated at X watts
- X-watt bulb / device / panel
- X watts of power
- X watts of electricity
- watt rating
- watt output
文法句型
number + watt + noun
number + watts + of + noun phrase
用法筆記
Often used as a compound modifier before a noun describing an electrical device (e.g., a 60-watt bulb). In this position the unit stays singular and is joined by a hyphen. After a number, 'watt' can be singular or plural depending on the number (1 watt, 60 watts).
常見錯誤
James Watt
idiom1736–1819 Scottish engineer and inventor whose improvements to the steam engine led to the unit of electrical power being named after him.
James Watt，蘇格蘭工程師與發明家，功率單位瓦特（watt）以他命名。
The watt is named after James Watt, the Scottish engineer who improved the steam engine.
James Watt's steam engine design helped power factories during the Industrial Revolution.
同根字
- wattage名詞B2
- kilowatt名詞B1
- megawatt名詞C1
- gigawatt名詞C1
- watt-hour名詞C1