一 : gain是什么意思_gain的中文释义及用法

gain　基本词汇

英 [ɡeɪn] 　 　 美 [ɡeɪn]

n.获得;收益;增益

v.获得;到达;增加;获利;(钟、表等)走得快

【详细释义】

n.(名词)

获得;获得物

增加，增添

获利;得益

利润，收益，经济收益;利益，好处;增值

腰槽

雄榫上的斜肩

报酬，奖金

改进

盖恩(音译名)

该隐，《圣经》中亚当和夏娃的长子

v.(动词)

获得，赢得，得到;使得到

到达

(钟、表等)走快

得益，获利，赚钱

取得进展，得到改善 ，增进健康

增加，增添，增长

在...上开腰槽，用腰槽连接

打胜(战争、官司)

前进，进步

争取...(到一边)，说服

吸引， 引起

【双解释义】

v.(动词)

vt. 获得,赢得 obtain sth useful, necessary, earned, etc.

vt. & vi. 增加; 获利 have an increase in sth

vt. & vi. (钟表)走快 (of a watch or clock) work too fast (by an amount of time)

vt. 抵达 reach (a place), especially with effort or difficulty

n.(名词)

[U]获益; 增财 the act of making a profit; increase in wealth

[C]利润; 增加 a profit; increase in amount

【常用短语】

用作动词 (v.)

gain by( v.+prep. )

通过…而取得进展 be improved by sth

gain by sth

You can only gain by further study.只有更进一步地学习,你才能提高。

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Your side has obviously gained by the change.这一改变对你方显然有利。

The man supplying the capital expected to gain considerably by the enterprise.提供资金的人期望从企业中得到相当大的收益。

gain sth by sth/v-ing

We gain our experience by degrees.我们的经验是逐步得来的。

He gained entry into the building by means of a bribe to the guard.他通过贿赂卫兵而获准进入大楼。

He gained his livelihood by teaching English.他靠教英语为生。

用于 be ～ed 结构

A good command of English can only be gained by constant practice.只有不断地实践才能对英语应用自如。

There is nothing to be gained by waiting any longer.再等待也没有什么好处。

gain from( v.+prep. )

从…获得利益 take advantage from

gain from sth

He hopes to gain from his crime.他想靠犯罪牟利。

They will gain from the training.在那种训练中,他们会有长进的。

The students gained from military training.学生们在军训中有收获。

They gained greatly from this experiment.在这次实验中,他们收获很大。

gain sth from sb/sth

I gained a good deal of enlightenment from him.我从他那里获得许多启迪。

I gained a lot from my former experiences.我从以前的经验中受益匪浅。

Men gained rich experience both from their success and from their failures.人们从成功和失败中获得丰富的经验。

He gained all this information from books, not from direct experience.这些知识他都是从书本里,而不是从直接体验中学来的。

gain ground( v.+n. )

前进，取得进步 go forward; make progress

At last our men began to gain ground, forcing the enemy back towards the river. 最后，我方士兵开始推进，迫使敌人向河边退去。

gain in( v.+prep. )

在…(方面)增加; 增长 increase in

gain in sth

You gained in wheat but lost in cotton.你们在小麦方面赢利,在棉花方面却亏损。

He is gaining in weight after his recovery from illness.他病愈以后体重增加了。

They have gained in strength.他们的力量增强了。

Alfred is a person who never seems to gain in wisdom, no matter how painful the results of his actions may be.艾尔弗雷德是这样一个人,不管他的行为会产生多么痛苦的后果,似乎都不会使他聪明些。

gain sth in v-ing

She has already gained some experience in teaching.她已取得一些教学经验。

gain on〔upon〕( v.+prep. )

〔说明〕 gain on〔upon〕通常不用于被动结构。

gain on〔upon〕 sb/sth

赶上,缩短距离 reduce the distance between oneself and a competitor

The horsemen were rapidly gaining on their enemy. 骑兵很快就赶上他们的敌人。

The policeman was slowly gaining on him. 那警察在慢慢地向他逼近。

The police started chasing the criminals and soon gained on them in their faster car. 警察开始追捕罪犯,他们的汽车开得比罪犯的快,不一会儿便赶上了他们。

I couldn't go any faster, even though the car behind was gaining on us. 尽管后面的汽车越来越逼近我们,我也没法开得更快了。

We are gaining upon them.I think we shall soon catch up with them. 我们离他们越来越近了,我想我们很快就会赶上他们的。

After pumping for one whole night with the water still gaining upon them, the sailors gave up in despair. 水手们抽水抽了整整一夜之后水仍然抽不净,他们便绝望地停下来不干了。

The second horse is gaining on the leader, and may pass it and win! 第二匹赛马快要追上头匹马了,可能会超过它而取胜!

The submarine was gaining on us, and a shell landed only a hundred yards or so astern of us. 那艘潜艇向我们逼近,一发炮弹就落在我舰后面大约100码的海上。

逐渐侵蚀 gradually corrode or erode

The sea has been gaining on the east coast of England for many years. 多年来海洋不断侵蚀英格兰的东海岸。

The sea is gaining on the land along the coast. 大海侵蚀着沿岸的陆地。

超过 outstrip; surpass; exceed

He continued to gain on the rest of the runners. 他继续跑在其他运动员前面。

The cyclist is reserving his strength for the last round when he will gain on his opponent. 自行车运动员把力量保留起来,准备用在最后一圈超过对手。

It is impossible for a small company to gain on the big one while business is so inactive. 商业如此不景气,一个小公司要想超过大公司是不可能的。

In winter, the night gains on the day. 冬天,黑夜比白天长。

gain over1 (v.+adv.)

争取过来 win over; convert

gain sb ⇔ over

They have gained him over.他们把他争取了过来。

They gained him over in the debate.他们在辩论中说服了他。

They expect to gain over a lot of converts.他们指望能争取许多改变信仰的人。

The new leader's popularity gained over many members of the opposing party.新领导深孚众望,把反对党的许多成员都争取过来了。

I don't think you will succeed in gaining him over to our side.我认为你无法将他争取到我们这一边来。

gain over2 (v.+prep.)

争取过来 win over; convert

gain sth over sb

Tom is trying to gain an advantage over me by getting Dick's support.汤姆想通过得到迪克的支持而胜过我。

【常见句型】

用作动词 (v.)

用作不及物动词

S+～(+A)

This clock neither gains nor loses.

这钟不快不慢。

The man gained a lot in the business, but he lost the respect of his friends.

那个人做这买卖赚了很多钱,但他却失去了朋友们对他的尊敬。

用作及物动词

S+～+ n./pron.

He gained the rank of Colonel.

他获得上校军衔。

Many countries have gained national independence after prolonged struggles.

许多国家经过长期斗争而获得了民族独立。

I gained my experience.

我获得了经验。

To gain a complete mastery of English, one must study very hard.

要想精通英语就必须刻苦努力。

They gained the game with ease.

他们很轻松地赢得了这场比赛。

He fought bravely in many battles and gained their respect.

在多次战役中他英勇作战,从而赢得了大家的尊敬。

He gained the admiration of the whole world.

他受到全世界的钦佩。

The soldiers fought hard and began to gain ground.

士兵们奋力作战,开始占领敌军阵地。

The sick man gained ground after being near death.

那病人在生命垂危之后又挺了过来。

Under strict management his business gained ground.

在严格的管理下,他的生意有了起色。

He has had a hard time in his new business but he is gaining ground now.

他起初干这一行时吃了一些苦头,现在有进展了。

The car is gaining speed.

那辆轿车正在加速。

Within two weeks, she gained five pounds in weight.

两周内她的体重增加了5磅。

My watch gains two minutes every day.

我的表每天快两分钟。

The swimmer gained the shore.

游泳者游到了岸边。

We cut a path through the forest and gained the river next day.

我们在林中辟出一条小路,于第二天到达河边。

Finally we gained the summit of the mountain.

我们终于到达了山顶。

Our car gained the main street.

我们的车子开到大马路上。

Having overcome a lot of difficulties we gained our destination at last.

克服了许多困难之后我们终于到达了目的地。

用于be ～ed结构

Nothing can be gained without an effort.

没有不劳而获的东西。

用作双宾动词

S+～+ pron./n. + n./pron.

His persistence gained him victory.

他的毅力使他获得了胜利。

Her talent and hard work gained her success as an artist.

她作为一名艺术家,靠其天资和勤奋获得了成功。

His misfortune gained him much sympathy.

他的不幸使他得到许多同情。

用作名词 (n.)

He put a lot of money into the firm with the hope of gain in the future.

他在这家公司投资很多,希望以后获得利润。

The gain is greater than the loss.

收益大于损失。

A fall into the pit, a gain in your wit.

吃一堑,长一智。

【词语用法】

gain表示“获得”时，后可接双宾语。

Her talent and hard work gained her success as an artist.

她的天赋和努力使她获得了成功，成为一个艺术家。

earn表示“赚得，赢得”，而gain表示“通过努力而获得有利的东西”。

v.(动词)

gain的基本意思是“获得”,指经过努力或竞争而取得有价值或想要的东西,如成就、经验、荣誉等。引申可表示“增加”“增进”“到达”“(钟表)走快…分钟”等。gain还可表示“抵达”。

gain可用作及物动词,也可用作不及物动词。用作及物动词时接名词或代词作宾语。gain作“获得”解时也可接双宾语。

gain用作不及物动词时后接介词in表示“在某方面有所增长”; 后接介词on或upon表示“接近,胜过或赶上”。

n.(名词)

gain作“盈利”解时是不可数名词,表示抽象意义。gain表示具体的数量、力量等的“增加,增进”“利润”时是可数名词,常可用复数形式。

【例句】

用作名词 (n.)

No pain, no gain.

不劳则无获。

He has no aspiration for fame or gain.

他不图名利。

It is not for the love of gain that he does so.

他这样做并非为了得什么好处。

用作动词 (v.)

It's the first time we've ever had the power to gain knowledge at our fingertips.

人们第一次有了这样的能力,可以在指尖轻松的获得知识。

After swimming for an hour, he finally gained the shore.

他游了一小时后,终于到达岸边。

Did you gain weight after you stopped exercising.

在你停止锻炼之后,你的体重增加了吗?

I did not gain very much by my inspection.

我这样细看一番收获并不太大。

They gain in security what they lose in liberty.

他们从安全中得到了他们在自由中所失去的东西。

The clock on my computer gains a minute every day.

我电脑上的时间每天快一分钟。

二 : PID调节中的GAIN是什么意思？

GAIN＝比例增益

1。PID是1种控制算法，是比例作用P、积分作用I、和微分作用D的总称。这3个作用可合成和分离成PI、PD(www.61k.com］，和PID这几个作用。
2。先看一下PID的模拟算法公式：
e（t）＝SP（t）－PV（t）；
OUT（t）＝GAIN*e（t）*（1＋*T/TI+TD/T）;
OUT（t）＝LMN_P+LMN_I+LMN_D
其中：LMN_P＝GAIN*e（t）；即比例作用项P
LMN_I＝GAIN*e（t）*T/TI；即积分作用项I
LMN_D＝GAIN*e（t）*TD/T；即微分作用项D
公式中，T＝采样时间；e（t）＝偏差值；TI＝积分时间；TD＝微分时间；GAIN＝比例增益；
由此可知，PID的运算输出是OUT（t）是比例作用项P（LMN_P）、积分作用项I（LMN_I），和微分作用项D（LMN_D）三项同时作用的总和。
3。请注意：在计算机中（包括plc）中，PID运算公式采用的是离散化的数字算法。数字PID算法公式通过对本次OUT（t）和上次OUT（t－1）PID的输出值的比较递推运算，易于软件编程实现。而数字PID算法公式的表达又分为位置式和增量式2种。
4。关于数字PID算法公式较多，在此不便列出。数字PID算法相关方面的知识，可在网上搜寻。

三 : gain什么意思，PID调节中的GAIN是什么意思？

GAIN=比例增益

1。PID是一种控制算法，是比例作用P、积分作用I、和微分作用D的总称。这三个作用可合成和分离成PI、PD，和PID这几个作用。

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2。先看一下PID的模拟算法公式：

e(t)=SP(t)-PV(t);

OUT(t)=GAIN * e(t)* (1+* T/TI+TD/T);

OUT(t)=LMN_P+LMN_I+LMN_D

其中：LMN_P=GAIN * e(t);即比例作用项P

LMN_I=GAIN * e(t)* T/TI;即积分作用项I

LMN_D=GAIN * e(t)* TD/T;即微分作用项D

公式中，T=采样时间;e(t)=偏差值;TI=积分时间;TD=微分时间;GAIN=比例增益;

由此可知，PID的运算输出是OUT(t)是比例作用项P(LMN_P)、积分作用项I(LMN_I)，和微分作用项D(LMN_D)三项同时作用的总和。

3。请注意：在计算机中(包括PLC)中，PID运算公式采用的是离散化的数字算法。数字PID算法公式通过对本次OUT(t)和上次OUT(t-1)PID的输出值的比较递推运算，易于软件编程实现。而数字PID算法公式的表达又分为位置式和增量式两种。

4。关于数字PID算法公式较多，在此不便列出。数字PID算法相关方面的知识，可在网上搜寻。

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