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impulse

impulse
[英] [ˈimpʌls] [美] [ˈɪmˌpʌls] 生词本

n.

adj.

v.

  • 柯林斯高阶英汉双解学习词典

  • 英英释义

  • 行业释义

  • 词典例句

1. N-VAR 冲动;一时兴起的念头 An impulse is a sudden desire to do something. 

  • Unable to resist the impulse, he glanced at the sea again...

    他抑制不住冲动,又向海面瞥了一眼。

  • He still couldn't understand the impulse that had made him confide in Cassandra...

    他仍然难以理解是什么样的冲动使他向卡桑德拉吐露了秘密。

  • Wade resisted an impulse to smile.

    韦德强忍住想笑的冲动。

2. N-COUNT 脉冲 An impulse is a short electrical signal that is sent along a wire or nerve or through the air, usually as one of a series. 
3. ADJ 一时兴起的;随兴的 An impulse buy or impulse purchase is something that you decide to buy when you see it, although you had not planned to buy it. 

  • The curtains were an impulse buy.

    窗帘是一时兴起买下的。

4. PHRASE 凭冲动;一时兴起 If you do something on impulse, you suddenly decide to do it, without planning it. 

  • Sean's a fast thinker, and he acts on impulse...

    肖恩是个思维敏捷、行事随兴的人。

  • After lunch she decided on impulse to take a bath.

    午饭后她突然兴起,决定洗个澡。

Noun

1. an instinctive motive;

  • "profound religious impulses"

2. a sudden desire;

  • "he bought it on an impulse"

3. the electrical discharge that travels along a nerve fiber;

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

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

  • "the pulsations seemed to be coming from a star"

5. the act of applying force suddenly;

  • "the impulse knocked him over"

6. an impelling force or strength;

  • "the car's momentum carried it off the road"

体育

  • 1.冲量

力学

<名>
  • 1.冲量

医学

  • 1.①推力，冲力，搏动；②冲动：突然、不可控制的决定要行动的冲动；③神经冲动

土木工程

<名>
  • 1.冲量

心理学

<名>
  • 1.冲动

水利

<名>
  • 1.冲量
  • 2.作用在物体上的力使物体的动量在某一时段内发生变化的度量，其值等于力和其作用时间的乘积。

物理学

<名>
  • 1.冲量

电工

<名>
  • 1.冲击

自动化

<名>
  • 1.冲量

航天

<名>
  • 1.冲量

计算机

  • 1.脉冲

通信

<名>
  • 1.冲激
  • 2.又称“冲击脉冲”。（1）一种持续期极短的信号。（2）电压（居多）或电流的一种无方向的短暂突发。

铁道

<名>
  • 1.脉冲
  • 2.又称 :脉冲(pulse)
1. A sudden impulse of anger arose in him.
他突然升起一阵怒火。

来自《现代英汉综合大词典》

2. He felt an irresistible impulse to rush into the room.
他有一种难以抗拒的冲动想冲进房间。

来自《简明英汉词典》

3. I don't know how to resist my impulse.
我不知道怎样抑制自己的感情冲动。

来自《现代汉英综合大词典》

4. She wrote that letter on impulse.
她一时冲动写了这封信。

来自《简明英汉词典》

5. The impulse of falling water turns the waterwheel.
落水的冲力使水轮转动。

来自《现代汉英综合大词典》

6. The main impulse for the unrest came from extremist Muslims.
动乱的主要动力来自于极端的伊斯兰教徒。

来自《简明英汉词典》

7. The plan will give an impulse to industrial expansion.
这个计划将促进工业的扩展。

来自《简明英汉词典》