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词汇 dynamo
释义

Definition of dynamo in English:

dynamo

nounPlural dynamos ˈdʌɪnəməʊˈdaɪnəˌmoʊ
British
  • 1A machine for converting mechanical energy into electrical energy, typically by means of rotating coils of copper wire in a magnetic field.

    〈主英〉发电机

    Example sentencesExamples
    • When the cars slow down, their energy is captured in dynamos that recharge the battery, rather than being wasted simply heating brake pads.
    • When he walks, the rotor of the dynamo rotates generating electricity and rechargeable batteries could be charged.
    • Using a second-hand oil engine and a small dynamo, he lit up the family home with low-power bulbs.
    • The seabed generators consist of an array of massive propellers that are spun around as the tidal flow rushes past and drive a dynamo that produces energy.
    • This he established in 1836, using it to give details of his electromagnets and their application in motors and dynamos.
    • Despite several eminent scientists predicting that electric light bulbs in a circuit would never work, a lamp powered by current produced by dynamos was demonstrated on 21 October 1879.
    • A dynamo converts mechanical energy from a moving electrical conductor into electromagnetic energy and thus generates current.
    • That same polarity functions in an inorganic realm in the principle of the dynamo, where the relative motion of iron and copper generates electricity.
    • The petrol engine turned a dynamo that produced electricity to drive the two electric motors.
    • In calm weather, the gases would explosively recombine in combustion engines turning dynamos.
    • Those are the brakes that act as dynamos, charging you up whenever you slow down.
    • In the case of a dynamo, cyclists have no lights when stationary but probably good lighting when moving.
    • The Englishman Michael Faraday built the first dynamo, capable of turning mechanical energy into electricity, only 173 years ago.
    • As well as a body made from dent-resistant plastic, it has regenerative brakes: pressing the pedal works like a dynamo, recharging the engine.
    • Thus he was able to convert mechanical energy into electrical energy and discover the first dynamo.
    • Faraday fooled around with wires and magnets and batteries, making the first electric motors and dynamos.
    • His uncle had patents on dynamos and electrical meters.
    • It worked under the same principle as a dynamo, where a moving wire in a magnetic field would create electricity.
    • Arguably the autocar laid the foundations for many of today's trains - using a petrol engine to drive a dynamo to power electric motors.
    • Hybrids work by using the braking power to spin a dynamo which charges a battery.
    1. 1.1informal An extremely energetic person.
      〈非正式〉精力充沛的人
      she was a dynamo in London politics

      她在伦敦政界非常活跃。

      Example sentencesExamples
      • I don't care what anyone says, that girl is a dynamo on stage.
      • The goalie in the second game was a little dynamo - dashing with great speed and grace.
      • Like most 6-year-olds, Mitchie is a dynamo of energy and motion.
      • The U.S. dynamo wins his fifth gold medal in the men's 100-meter butterfly.
      • He's an extraordinary musician and just a dynamo to work with.
      • She is an intellectual dynamo and long-time friend.
      • She had both a heart and a lung transplanted, and she was an absolute dynamo.
      • Brigid Fitzgerald who has been a dynamo of community development for many years acted as MC for the evening.
      • The young dynamo came home in first place in Class 6 and finished 18th overall.
      • Sherman Spencer again proved to be a real dynamo in the forwards with his five goal haul.
      • Some of my gang got up to £120 a day,’ explains the fast-talking, self-styled dynamo.
      • He's like this dynamo, full of energy and positivity.
      • The midfield dynamo with the energy and face of a terrier said this spring that the mood around the team was ‘miserable’.
      • His experience has made him a dynamo within the company and throughout the industry.
      • He is a whirling dynamo when it comes to jumping, spinning kicks.
      • The four organizers of Expozine are dynamos of productivity.
      • She was always a little dynamo, more than willing to jump in and lend a hand, always had a smile on her face.
      • A vivacious dynamo of energy and ambition, she would be the last person to seek the title of saviour of the film industry north of the Border.
      • Ben Vereen is nothing short of masterful, a dynamo of energy and enthusiasm that carries the show from beginning to end.
      • His mother, nearly eighty years old but still a dynamo of energy and faith, has raised fourteen children.

Origin

Late 19th century: abbreviation of dynamo-electric machine, from Greek dunamis 'power'.

Definition of dynamo in US English:

dynamo

nounˈdaɪnəˌmoʊˈdīnəˌmō
British
  • 1A machine for converting mechanical energy into electrical energy; a generator.

    〈主英〉发电机

    Example sentencesExamples
    • This he established in 1836, using it to give details of his electromagnets and their application in motors and dynamos.
    • Arguably the autocar laid the foundations for many of today's trains - using a petrol engine to drive a dynamo to power electric motors.
    • Hybrids work by using the braking power to spin a dynamo which charges a battery.
    • Faraday fooled around with wires and magnets and batteries, making the first electric motors and dynamos.
    • In the case of a dynamo, cyclists have no lights when stationary but probably good lighting when moving.
    • As well as a body made from dent-resistant plastic, it has regenerative brakes: pressing the pedal works like a dynamo, recharging the engine.
    • The Englishman Michael Faraday built the first dynamo, capable of turning mechanical energy into electricity, only 173 years ago.
    • In calm weather, the gases would explosively recombine in combustion engines turning dynamos.
    • His uncle had patents on dynamos and electrical meters.
    • The seabed generators consist of an array of massive propellers that are spun around as the tidal flow rushes past and drive a dynamo that produces energy.
    • It worked under the same principle as a dynamo, where a moving wire in a magnetic field would create electricity.
    • Thus he was able to convert mechanical energy into electrical energy and discover the first dynamo.
    • Using a second-hand oil engine and a small dynamo, he lit up the family home with low-power bulbs.
    • When he walks, the rotor of the dynamo rotates generating electricity and rechargeable batteries could be charged.
    • A dynamo converts mechanical energy from a moving electrical conductor into electromagnetic energy and thus generates current.
    • The petrol engine turned a dynamo that produced electricity to drive the two electric motors.
    • Despite several eminent scientists predicting that electric light bulbs in a circuit would never work, a lamp powered by current produced by dynamos was demonstrated on 21 October 1879.
    • Those are the brakes that act as dynamos, charging you up whenever you slow down.
    • That same polarity functions in an inorganic realm in the principle of the dynamo, where the relative motion of iron and copper generates electricity.
    • When the cars slow down, their energy is captured in dynamos that recharge the battery, rather than being wasted simply heating brake pads.
    1. 1.1informal An extremely energetic person.
      〈非正式〉精力充沛的人
      she was a dynamo in London politics

      她在伦敦政界非常活跃。

      Example sentencesExamples
      • A vivacious dynamo of energy and ambition, she would be the last person to seek the title of saviour of the film industry north of the Border.
      • Sherman Spencer again proved to be a real dynamo in the forwards with his five goal haul.
      • His experience has made him a dynamo within the company and throughout the industry.
      • Ben Vereen is nothing short of masterful, a dynamo of energy and enthusiasm that carries the show from beginning to end.
      • The young dynamo came home in first place in Class 6 and finished 18th overall.
      • I don't care what anyone says, that girl is a dynamo on stage.
      • The midfield dynamo with the energy and face of a terrier said this spring that the mood around the team was ‘miserable’.
      • He's like this dynamo, full of energy and positivity.
      • His mother, nearly eighty years old but still a dynamo of energy and faith, has raised fourteen children.
      • He's an extraordinary musician and just a dynamo to work with.
      • The four organizers of Expozine are dynamos of productivity.
      • Some of my gang got up to £120 a day,’ explains the fast-talking, self-styled dynamo.
      • She was always a little dynamo, more than willing to jump in and lend a hand, always had a smile on her face.
      • Brigid Fitzgerald who has been a dynamo of community development for many years acted as MC for the evening.
      • The U.S. dynamo wins his fifth gold medal in the men's 100-meter butterfly.
      • The goalie in the second game was a little dynamo - dashing with great speed and grace.
      • She had both a heart and a lung transplanted, and she was an absolute dynamo.
      • She is an intellectual dynamo and long-time friend.
      • Like most 6-year-olds, Mitchie is a dynamo of energy and motion.
      • He is a whirling dynamo when it comes to jumping, spinning kicks.

Origin

Late 19th century: abbreviation of dynamo-electric machine, from Greek dunamis ‘power’.

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