impulse

n. 冲动；[电子] 脉冲；刺激；神经冲动；推动力

vt. 推动

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

[C]凭冲动行事,突如其来的念头 sudden urge to act without thinking about the results

[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

双语例句

用作名词(n.)

He bought the house on an impulse.
他凭一时冲动买下了这所房子。

We were seized by a sudden impulse to run.
我们身不由己突然想跑。

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。

He had a sudden impulse to stand up and sing.
他突然心血来潮，想站起来歌唱。

He grasped her hand on an impulse.
他情不自禁地握紧她的手。

I had an impulse to go shopping.
我当时有种购物的冲动。

权威例句

impulse (n.)

early 15c., "an act of impelling, a thrust, push," from Latin impulsus "a push against, pressure, shock," also "incitement, instigation, impulse," past participle of impellere (see impel). Meaning "stimulus in the mind arising from some state or feeling" first recorded 1640s.

1. If the application can’t accommodate this impulse, it is needlessly inserting excise into the interface.

如果程序不能接受这种想法，也没有必要将这种附加工作加入到界面中。

-- 来源 -- About Face 3交互设计精髓

2. She bought the dress on impulse.

她一时冲动买了这件衣服。

-- 来源 -- 英汉 - 辞典例句

3. An instantaneous and strong impulse moved him to battle with his desperate fate.

一股迅疾而强有力的冲动促使他要向坎坷的命运奋斗。

-- 来源 -- 英汉 - 辞典例句

4. He had the impulse to start up, to fling open the door.

他有一种冲动，想要跳起来，拉开房门。

-- 来源 -- 英汉 - 辞典例句

5. Beaverbrook was a potent impulse.

比费布鲁克是一位具有强大的推动力量的人物。

-- 来源 -- 英汉 - 辞典例句

6. There is the impulse to act, which is interrupted by reflection, but eventually the impulse completes itself in action.

这里存在一种从事某种行为的冲动，这种冲动被思考打断，但是终于以行为的方式完成了这种冲动。

-- 来源 -- 英汉 - 辞典例句

7. The positive phase dynamic impulse can be defined by a similar expression.

正周相动力冲量的定义可以用类似的式子表示。

-- 来源 -- 英汉 - 辞典例句

8. It was so unlike him to yield to such an irrational impulse!

他如此冲动，如此不顾理智，实在有失常态。

-- 来源 -- 英汉 - 辞典例句

9. At any rate an egg ruined his new impulse in life.

总而言之，是一只鸡蛋毁了他对生活的新的激情。

-- 来源 -- 英汉 - 辞典例句

10. Still by an irresistible impulse I curse myself with an awful penance.

我仍旧要情不自禁地悔恨得咬牙切齿，咒骂自己。

-- 来源 -- 英汉 - 辞典例句