1. 1千瓦(kW)

    A kilowatt is a unit for measuring electrical power: how hard electricity is working at one moment. One kilowatt is 1,000 watts. A small heater or a microwave might use around one or two kilowatts while it is on. The short form is kW. This kilo- is the ordinary 1,000, not 1,024. Though actually, the number on an electricity bill is usually not kilowatts but kilowatt-hours. A kilowatt tells you how strong the flow is right now; a kilowatt-hour tells you how much energy you used over time, which is what you pay for. People mix those two up all the time, even in English-speaking countries. The watt in the word is named after James Watt. You will meet kilowatts on labels, generators, and solar panels, not as a measure of computer files.

組成kilo- (“thousand”) + watt (the unit of power).

同家族的字

  • wattthe base unit; a kilowatt is 1,000 watts
  • megawattthe next common step up
  • kilogramsame kilo- at the front, “a thousand”

原始詞典資料2 筆記錄

以下是外部詞典記錄的用法,摘錄並精簡格式,我們還沒有寫成教學內容。上面的說明才是我們自己寫的;有些用法可能上面已經講過了。

kilowattnoun/ˈkɪ.ləˌwɒt/

  • 1

    One thousand (10³) watts, an amount of power large enough to power such things as a typical home appliance (e.g., a microwave oven, a toaster, or a hair dryer). (Consuming 1 kilowatt during a duration of 1 hour consumes 1 kilowatt-hour of energy.)

    • Holonyms: MW, megawatt < GW, gigawatt < TW, terawatt < PW, petawatt
    • Meronyms: mW, milliwatt < W, watt
  • 2

    informalCatachresis for kilowatt-hour.

摘錄自 英文維基詞典 English Wiktionary,已精簡格式;依 CC BY-SA 4.0 授權使用,改動後的內容同樣以此授權提供。