impulse
impulse
英[ˈɪmpʌls]美[ˈɪmpʌls]
n.凭冲动行事，突如其来的念头，[电子]脉冲，[医]冲动，搏动；
复数：impulses;
例句
She wrote that letter on impulse.她一时冲动写了这封信。
Impulse is the product of net force and time it is acting.冲量等于物体所受合外力和时间的乘积。
The plan will give an impulse to industrial expansion.这个计划将促进工业的扩展。
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。
Impulse acts as a message sent through a neuron.冲动相当于通过神经元传送的信息.
Information is transferred along each neuron by means of an electrical impulse.信息在电脉冲作用下经神经元传递。
Carrie turned slowly away, and seemed to be mastering some impulse in silence.嘉莉慢慢转过身去, 好像在暗中竭力克制某种冲动.
At such junctures he always had an impulse to leave; it was needed on special occasions.在那时他总有要离开的冲动, 在紧急时刻她站了出来.
At such junctures he always had an impulse to leave.在这样的紧要关头,他总有要离开的冲动.
She extricated herself from her mingled impulse to deny and guestion.她约束了自己想否认并追问的不可明状的冲动.
同义词
n.
impulse的同义词之：一时的念头
suddenwhimflashfancythoughtinspirationnotionimpulse的同义词之：强制;冲动
thrustpressureurgecompulsionstimuluspushimpulse的同义词之：其他释义
notioninspirationfancyflashthrusturgeprovocationcompulsionpressurepushstimulantoccasion词组
on impulse (或 on an impulse)
suddenly and without forethought; impulsively凭冲动，冲动地英语四级真题
Because ConAgra felt the product would be an impulse purchase, it was important to make the item stand out in the freezer case.
出自-2015年12月听力原文The problem is that such an impulse is hard to sustain Across the country, many similar families were unable to maintain the initial boost in morale(士气).
出自-2012年6月阅读原文Many of them buy things on impulse.
出自-2013年6月听力原文柯林斯高阶英汉双解学习词典释义
N-VAR
冲动;一时兴起的念头
An impulse is a sudden desire to do something.
例句
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。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.
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.
例句
The curtains were an impulse buy.窗帘是一时兴起买下的。PHRASE
凭冲动;一时兴起
If you do something on impulse, you suddenly decide to do it, without planning it.
例句
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。英汉词典释义
n.
凭冲动行事, 突如其来的念头
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。推动, 冲力, 刺激, 推动力
The plan will give an impulse to industrial expansion.这个计划将促进工业的扩展。冲量
Impulse is the product of net force and time it is acting.冲量等于物体所受合外力和时间的乘积。英英词典释义
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"行业词典
体育： 冲量；
力学： 冲量；
医学： 推力，冲力，搏动；冲动：突然、不可控制的决定要行动的冲动；神经冲动；
土木工程： 冲量；
心理学： 冲动；
水利： 冲量；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： 冲量；
电工： 冲击；
自动化： 冲量；
航天： 冲量；
通信： 冲激；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： 脉冲；又称 :脉冲(pulse)；
