horsepower

CET-4 大学 FREQ #13238

n. 马力 [电] 马力

发音

US /ˈhɔɹsˌpaʊɚ/
UK /ˈhɔːsˌpaʊə/

词形变化

horsepowers 复数 horsepowers

别名

horse power horse-power hp HP

教材释义与例句

名词

马力（功率单位）

释义与例句

n.
  1. 1.

    Power derived from the motion of a horse.

    不可数 可数
  2. 2.

    A nonmetric unit of power with various definitions, commonly the mechanical horsepower, approximately equal to 745.7 watts.

    可数 不可数

    In the past, before the widespread adoption of SI units, the work that engines were capable of doing was compared with the work that horses could do – hence the term ‘horsepower’. Various people came up with various equivalencies, but the modern agreed definition is that 1 horsepower is 746 joules per second or 746 watts.

  3. 3.

    Metric horsepower, a metric unit approximately equal to 735.5 watts.

    马力

    可数 不可数
  4. 4.

    Strength, performance capability, specs, or similar.

    马力

    比喻 不可数 可数

    political horsepower

词汇关系

名词

同义词 1

hp

上位词 1

power unit

部分词 2

w watt

相关短语

brake horsepower [机] 制动马力, 煞车马力, 实马力 equivalent shaft horsepower shaft horsepower n. 轴马力 [机] 轴马力 mechanical horsepower thermal horsepower hydraulic horsepower tax horsepower metric horsepower

词源

From horse + power: the unit was originally defined as the amount of power that a horse could provide. Both non-metric and metric units of power were derived from effectively identical measurements of the power a draught horse could sustain over several hours, with the difference in watts solely due to different rounding errors to express that power in round numbers in the original non-SI units (ft·lbf/min and kgf⋅m/s respectively).

来源：wiktionary