impulse
英 [ˈɪmpʌls] 美 [ˈɪmˌpʌls]

n.

凭冲动行事；突如其来的念头；[电子]脉冲；[医]冲动，搏动

adj.

冲动的；

v.

推动；

变形

复数：impulses

双语释义

n.(名词)

1. [C]凭冲动行事,突如其来的念头 sudden urge to act without thinking about the results
2. [C]推动; 冲力; 刺激; 推动力 push or thrust; impetus

英英释义

impulse[ 'impʌls ]

• n.
  • an instinctive motive

    "profound religious impulses"

    同义词：urge

  • a sudden desire

    "he bought it on an impulse"

    同义词：capricewhim

  • the electrical discharge that travels along a nerve fiber

    "they demonstrated the transmission of impulses from the cortex to the hypothalamus"

    同义词：nerve impulse

  • (electronics) a sharp transient wave in the normal electrical state (or a series of such transients)

    同义词：pulsationpulsingpulse

  • the act of applying force suddenly

    "the impulse knocked him over"

    同义词：impulsionimpetus

  • an impelling force or strength

    同义词：momentum

词汇搭配

用作名词 (n.)动词+～

• feel an impulse情不自禁想
• follow an impulse凭一时冲动
• give an impulse促进
• receive an impulse受到刺激

形容词+～

• blind impulse盲目的冲动
• fresh impulse新的刺激
• slight impulse轻微的刺激
• strong impulse强烈的冲动

介词+～

• by impulse凭情绪
• on impulse凭一时冲动
• under impulse在…驱使下

词组短语

impulse response脉冲响应

on impulse一时冲动，一时心血来潮

impulse noise脉冲噪声，冲激噪声

impulse voltage冲击电压；冲荤压；脉冲电压

impulse response function响应函数；脉冲响应函数；反应函数

impulse control脉冲控制；冲动控制

specific impulse比冲量；比推力

nerve impulse[医]神经冲动

impulse test[电]冲击试验

impulse force冲击力

impulse turbine冲力式涡轮机；冲击式汽轮机；水戽式（冲击式）水轮机

impulse function脉冲函数；冲力函数；冲击函数

impulse buying即兴购买；未经考虑仅凭一时冲动的购物行为

更多收起词组短语

双语例句

用作名词(n.)

1. He bought the house on an impulse.
   他凭一时冲动买下了这所房子。
2. We were seized by a sudden impulse to run.
   我们身不由己突然想跑。
3. On impulse, I picked up the phone and rang my sister in Australia.
   我一时心血来潮，拿起话筒就给在澳大利亚的妹妹打了个电话。
4. He had a sudden impulse to stand up and sing.
   他突然心血来潮，想站起来歌唱。
5. He grasped her hand on an impulse.
   他情不自禁地握紧她的手。
6. I had an impulse to go shopping.
   我当时有种购物的冲动。

权威例句

Impulse Radio
Impulse Radio
Impulse radio: How it works
Impulse radio: How it works
The Buying Impulse
Impulse response analysis in nonlinear multivariate models ☆
Generalized impulse response analysis in linear multivariate models
Specious reward: a behavioral theory of impulsiveness and impulse control.
Two-phase approach for deblurring images corrupted by impulse plus Gaussian noise
Ultra-wide bandwidth time-hopping spread spectrum impulse radio for wireless access communications