一、constraint与restraint有什么区别
具体区别:
1,restrain
常用于表示克制自己的行为或情绪,也可表示制止他人的行为,但制止方式较为温和,带劝告性的。常用结构是:restrain…… from……。名词restraint后接介词on。
2,constrain
指强制性抑制或制止他人的行为。名词constraint后也接介词 on。
扩展资料:1、restrain的例句
She could notrestrainher curiosity to see what was in the box.
她无法抑制她的好奇心,总想看看盒子里装着什么东西。
But you need to really learn torestrainyourself and don't spend it all.
但是你需要真正学会约束自己,不要一次性都花光。
She could notrestrainthe children from running into the street.
她无法阻止小孩子们跑到街上去。
But the little prince could notrestrainhis admiration:"Oh! How beautiful you are!"
小王子这时再也抑制不住自己的爱慕心情:"你是多么美丽啊!"
2,constrain的例句
America should also stress that the TPP is meant to engage and incorporate China, rather thanconstrainit.
美国也应该强调,TPP也想要吸引与包含中国,而不是要遏制它。
Regulatory limits on the height and density of buildingsconstrainsupply and inflate prices.
从法律层面上对建筑的高度和密度进行限制,降低了供给,也助推了房价。
He worries the legal empowerment of gay people will erode religious freedoms in America andconstrainthe church's outreach to society.
他担心同性恋者的合法权益将会损害美国的宗教自由并且限制教会同社会的接触。
The Vietnamese government continued toconstraincivil society in other ways as well, including by censoring the press and restricting the activities of NGOs.
越南政府也继续以其他方式约束民间团体,包括审查新闻和限制非政府组织的活动。
二、restraint和constraint的区别
具体区别:
1,restrain
常用于表示克制自己的行为或情绪,也可表示制止他人的行为,但制止方式较为温和,带劝告性的。常用结构是:restrain…… from……。名词restraint后接介词on。
1)The manager asks his employees to restrain themselves from playing games on
the web during work time.
(经理要求他的员工克制自己,不要在工作的时候在网上玩游戏。)
2) The mother tried to restrain her children from making big noise in the public
places.
(这位母亲竭力抑制自己的孩子不在公共场所大声喧闹。)
3) The police exercised great restraint by not responding to the insulting
remarks of the protesters.
(警察采取极大克制态度,对**者的辱骂未作任何反应。)
4) Don’t you think it necessary for you to exercise some restraints/restrictions
on your behaviors?
(难道你不认为你有必要对自己的行为加以约束吗?
2,constrain
指强制性抑制或制止他人的行为。名词constraint后也接介词 on。
1) He constrained his daughter from going out to date with boys during the night.
(他禁止他的女儿夜晚外词汇与男孩约会。)
2) The policemen had difficulty in constraining the crowd from rushing onto the
football pitch.
(警察难以制止人群冲进足球场地。)
3) Since the entry into the World Trade Organization, China has been reducing
constraints on imports.
(自从加入世界贸易组织,中国已经降低了进口限制。)
三、restrict 与 constraint 的用法区别
前面的restrict是个及物动词-------限制
后面的constraint是个名词---------约束
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1. temporary restricted zone on arthur street, yau ma tei
油麻地鸦打街临时限制
2. 2: edge were restricted to wait is going to explode.
2:边缘都是禁区,挨到会爆炸
3. restricted zone on upper albert road, the mid-levels
米处起,至同一交界处以东
4. temporary restricted zones on wang kwong road, kowloon bay
九湾宏光道临时限制
5. you might want to restrict the capability of the
例如,可能需要采用这种方式限
6. extension of temporary restricted zone on wai man road
延续西贡惠民路临时限制
7. temporary restricted zone on fui yiu kok street, tsuen wan
荃湾灰角街临时限制
8. temporary restricted zone on fung tak road, wong tai sin
黄大仙凤德道临时限制
9. rescission of restricted zones on yau tong road, kwun tong
撤消观塘油塘道限制
10. temporary restricted zone in in kwai ting road, kwai chung
葵涌葵定路临时限制
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1. configuring settings and constraints on applications
在应用程序上配置设置和约
2. constraints on type parameters c programming guide
类型参数的约束(C#编程指南
3. linguistic constraints on morphological productivity
影响构词能力的语言因素探
4. to disable a foreign key constraint for replication
在**时禁用FOREIGNKEY约
5. no primary key constraints are created locally.
本地不创建任何PRIMARYKEY约束
6. constraint was enabled without checking existing rows.
启用约束时未检查现有行
7. here is an ocl constraint to illustrate this point:
以下是说明这一点的OCL约束
8. you can define many check constraints for a table.
可以为表定义多个CHECK约束
9. constraint with other constraints, it must be specified last:
约束必须最后指定
10. setting precedence constraints on tasks and containers
>对任务和容器设置优先约
四、数据库中constraint和column是什么意思
constraint表示约束,我特意帮你截取了一个我们自己数据库的图片,你认真看一共有三个常见的约束1、primary key(主键约束)。
2Unique(唯一性约束)。
3foreign key(外键约束)。
primary key和Unique key的区别是primary key不能为NULL且需唯一,Unique key可以为NULL但必须唯一,可以这么认为primary key+NULL=Unique key。column表示“列”也就是我们常说的字段。
扩展资料:
定义
数据库是存放数据的仓库。它的存储空间很大,可以存放百万条、千万条、上亿条数据。但是数据库并不是随意地将数据进行存放,是有一定的规则的,否则查询的效率会很低。当今世界是一个充满着数据的互联网世界,充斥着大量的数据。
即这个互联网世界就是数据世界。数据的来源有很多,比如出行记录、消费记录、浏览的网页、发送的消息等等。除了文本类型的数据,图像、音乐、声音都是数据。
参考资料来源:百度百科-数据库
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