网上科普有关“expiore什么意思”话题很是火热,小编也是针对expiore什么意思寻找了一些与之相关的一些信息进行分析,如果能碰巧解决你现在面临的问题,希望能够帮助到您。
是这个吧
explore
[iks5plC:]
v.
探险, 探测, 探究
explore
ex.plore
AHD:[?k-spl?r“, -spl?r“]
D.J.[!k6spl%8, -6spl*&r]
K.K.[!k6spl%r, -6splor]
v.(动词)
ex.plored,ex.plor.ing,ex.plores
v.tr.(及物动词)
To investigate systematically; examine:
钻研:系统地研究;调查:
explore every possibility.
系统地研究每一个可能性
To search into or travel in for the purpose of discovery:
勘探:为有所发现而进行的探测或旅行:
exploring outer space.
太空勘探
Medicine To examine for diagnostic purposes.
医学 探察:为了诊断的目的而检查
v.intr.(不及物动词)
To make a careful examination or search:
考察:仔细地检查或寻找:
scientists who have been known to explore in this region of the earth.
以考察这一地域而闻名的科学家们
Latin explre}
拉丁语 explre}
ex- [ex-]
ex- [前缀,表“…之外”]
perhaps plre} [to cry out, as to rouse game]
可能为 plre} [大声呼喊,为提醒比赛]
explore
[iks5plC:]
vt.
探索, 研究; 钻研
勘探, 探测; 测定; 探险
医探察(伤处等)
explore archives
查档案
explore the Antarctic regions
南极地区考察[探险]
explore
[iks5plC:]
vi.
探索; 探测; 考察; 探险;医探察
explore for oil
勘探石油
explore
ex.plore
AHD:[?k-spl?r“, -spl?r“]
D.J.[!k6spl%8, -6spl*&r]
K.K.[!k6spl%r, -6splor]
v.
ex.plored,ex.plor.ing,ex.plores
v.tr.
To investigate systematically; examine:
explore every possibility.
To search into or travel in for the purpose of discovery:
exploring outer space.
Medicine To examine for diagnostic purposes.
v.intr.
To make a careful examination or search:
scientists who have been known to explore in this region of the earth.
Latin explre}
ex- [ex-]
perhaps plre} [to cry out, as to rouse game]
explore
词源同explorer的
explore
examinehuntinvestigatelookproberesearchsearch
oracle 9i和oracle10i 有什么区别
一般指“夫妻俩”
金山的解释是:
couple
[5kQp(E)l]
n.(一)对, (一)双, 夫妇
vt.连合, 连接, 结合
vi.结合, 结婚
join pair team
couple
AHD:[k绯搮l]
D.J.:[6k(p*l]
K.K.:[6k(p*l]
n.
Two items of the same kind; a pair.
Something that joins or connects two things together; a link.
usage: used with a sing. or pl. verb
Two people united, as by betrothal or marriage.
Two people together.
Informal
A few; several:
a couple of days.
Physics
A pair of forces of equal magnitude acting in parallel but opposite directions, capable of causing rotation but not translation.
couple
v.
cou.pled; cou.pling; cou.ples;
couple
v.tr.
To link together; connect:
coupled her refusal with an explanation.
To join as spouses; marry.
To join in sexual union.
Electricity
To link (two circuits or currents) as by magnetic induction.
couple
v.intr.
To form pairs; join.
To unite sexually; copulate.
To join chemically.
couple
adj. Informal
Two or few:
揈very couple years the urge strikes, to . . . haul off to a new site?Garrison Keillor)
Middle English
fromOld French
fromLatin c絧ula[ bond, pair ]
couple pair brace yokeThese nouns denote two individuals of the same kind together. <SKW> Coupledoes not necessarily imply more than association:
a square dance performed by four couples. The term may also mean simply 揻ew?
a couple of minutes;
a couple of books. <SKW>Pair stresses close association and often reciprocal dependence of things (
a pair of gloves;
a pair of pajamas); sometimes it denotes a single thing with interdependent parts (
a pair of scissors;
a pair of spectacles). <SKW> Brace refers principally to certain animals or game birds (
a brace of hounds;
a brace of partridges), and yoke to two joined draft animals (
a yoke of oxen).
When used to refer to two people who function socially as a unit, as in a married couple, the word couple may take either a singular or a plural verb, depending on whether the members are considered individually or collectively:
The couple were married last week.
Only one couple was unaccounted for. When a pronoun follows, they and their are more common than it and its:
The couple decided to spend their (less commonly its) vacation in Italy. Care should be taken that the verb and the pronoun agree in number:
The couple have their (less commonly has its) primary residence in New York. ?Although the phrase a couple of has been well established in English since before the Renaissance, it has been criticized on several grounds. Grammarians used to insist that a couple of should be used only to refer to things closely linked to one another and so was improperly used in phrases such as a couple of years ago. This objection has not been heard in some time and was never well supported. Modern critics have sometimes maintained that a couple of is too inexact to be appropriate in formal writing. But the inexactitude of a couple of may serve a useful communicative purpose, suggesting that the writer is indifferent to the precise number of items involved. Thus the sentence She lives only a couple of miles away implies not only that the distance is short but that its exact measure is unimportant. Furthermore, a couple of is different from a few in that it does not imply that the relevant amount is relatively small. One might say admiringly of an exceptional center fielder that he can throw the ball a couple of hundred feet, but not, except ironically, a few hundred feet, which would suggest that such a throw was unremarkable. The usage should be considered unobjectionable on all levels of style.
couple
AHD:[k绯搮l]
D.J.:[6k(p*l]
K.K.:[6k(p*l]
n.
Two items of the same kind; a pair.
一对,一双同一种类的两件;一对
Something that joins or connects two things together; a link.
连接物把两件东西连接在一起的东西;连接物
usage: used with a sing. or pl. verb
usage: 与单数或复数动词连用
Two people united, as by betrothal or marriage.
夫妻,情侣通过订婚或婚姻结合在一起的两个人
Two people together.
一对在一起的两个人
Informal
非正式用语
A few; several:
数个;几个:
a couple of days.
几天
Physics
物理学
A pair of forces of equal magnitude acting in parallel but opposite directions, capable of causing rotation but not translation.
力偶具有相等磁性的两个力,平衡作用但反向,能导致旋转但不能造成平移
couple
v.
cou.pled; cou.pling; cou.ples;
couple
v.tr.
To link together; connect:
连在一起;连接:
coupled her refusal with an explanation.
她的带有解释的拒绝
To join as spouses; marry.
成双,结婚作为配偶结合;结婚
To join in sexual union.
性交,交配
Electricity
电学
To link (two circuits or currents) as by magnetic induction.
连接如通过电磁感应连接(两条线路或电流)
couple
v.intr.
To form pairs; join.
形成对;连接
To unite sexually; copulate.
性交;交配
To join chemically.
化学上结合
couple
adj. Informal
Two or few:
两个的,几个的:
揈very couple years the urge strikes, to . . . haul off to a new site?Garrison Keillor)
“每几年,想撤离去一个新地点的冲动就来了”(加里森·谢勒)
Middle English
中古英语
fromOld French
源自古法语
fromLatin c絧ula[ bond, pair ]
源自拉丁语 c絧ula[ 绳索,对 ]
couple pair brace yokeThese nouns denote two individuals of the same kind together. Coupledoes not necessarily imply more than association:
a square dance performed by four couples. The term may also mean simply 揻ew?
由四对表演的四方舞。这个名词也可以指简单的“几个”:
a couple of minutes;
几分钟;
a couple of books. Pair stresses close association and often reciprocal dependence of things (
几本书。<SKW>Pair强调亲密的联系和事物相互依赖:(
a pair of gloves;
一副手套;
a pair of pajamas); sometimes it denotes a single thing with interdependent parts (
一套睡衣裤);有时它表示具有两个相互依赖部分的一件东西(
a pair of scissors;
一把剪刀;
a pair of spectacles). Brace refers principally to certain animals or game birds (
一副眼镜)。<SKW> Brace主要指某种动物或驯鸟(
a brace of hounds;
一对猎狗;
a brace of partridges), and yoke to two joined draft animals (
一双鹧鸪), yoke主要指两个连在一起的役用动物(
a yoke of oxen).
一对牛)
When used to refer to two people who function socially as a unit, as in a married couple, the word couple may take either a singular or a plural verb, depending on whether the members are considered individually or collectively:
当用来表示作为一个单位来行使社会功能的两个人时,如在 一对已婚夫妇中,单词 couple既可以带单数动词也可以带复数动词,这取决于两个人是被单个或集体地看待的:
The couple were married last week.
这一对夫妇是上星期结的婚。
Only one couple was unaccounted for. When a pronoun follows, they and their are more common than it and its:
只有一对夫妇没被算在内。如果后面跟有代词, they和 their比 it和 its要常用一些:
The couple decided to spend their (less commonly its) vacation in Italy. Care should be taken that the verb and the pronoun agree in number:
这对夫妇决定在意大利度过他们的(很少用 its) 假期。应当注意动词和代词在数上要一致:
The couple have their (less commonly has its) primary residence in New York. ?Although the phrase a couple of has been well established in English since before the Renaissance, it has been criticized on several grounds. Grammarians used to insist that a couple of should be used only to refer to things closely linked to one another and so was improperly used in phrases such as a couple of years ago. This objection has not been heard in some time and was never well supported. Modern critics have sometimes maintained that a couple of is too inexact to be appropriate in formal writing. But the inexactitude of a couple of may serve a useful communicative purpose, suggesting that the writer is indifferent to the precise number of items involved. Thus the sentence She lives only a couple of miles away implies not only that the distance is short but that its exact measure is unimportant. Furthermore, a couple of is different from a few in that it does not imply that the relevant amount is relatively small. One might say admiringly of an exceptional center fielder that he can throw the ball a couple of hundred feet, but not, except ironically, a few hundred feet, which would suggest that such a throw was unremarkable. The usage should be considered unobjectionable on all levels of style.
这对夫妇(很少用 has its ) 最初的住处在纽约。 尽管 a couple of 这个短语在文艺复兴之前就已在英语中形成,它仍受到多方面批评。语法学家过去坚持认为 a couple of 应该只用于指互相之间紧密相连的东西,所以在 a couple of years ago这样的短语中用是不适当的。这样的反对意见长时间没有人提起了,也从未受到太多支持。现代批评家有时也认为 a couple of 太不精确,不能很恰当地用于正式的写作中。但 a couple of的不精确性也有一种很有用的传达交流的意图,表明作者对于所涉及的事物的精确数目并不太关心。因此 她住的只有几英里远这个句子不仅表明距离很远,同时也表明精确测量是不重要的。另外 a couple of与 a few 的不同还表现在它不表示有关的数量是相对来说小的。如果夸赞一个优秀的中外野球手,可以说 他能把球抛几百英尺远,若非如此的话,排除反意的可能, a few hundred feet指抛这么远并没什么稀奇之处。这种用法在各种文体上都是无可辩驳的
couple
[5kQp(E)l]
n
(一)对;(一)双
a couple of socks
一双袜子
夫妻
My brother and his wife are a happy couple.
我弟弟和他的妻子是一对幸福的夫妻。
几个;三两个
I have a couple of things to do.
我有几件事情要办。
I waited a couple of hours.
我等了几个小时。
couple
vt
-pled, -pling
连接;结合
(动物的)交配,配对,交媾,交合
join pair team
couple
[5kQpl]
n.
夫妻, 配偶
两个(人或物); 一对
〔口〕交配
〔口〕(少数)几个, 两三个
物力偶; 力矩; 电偶, 热偶
天联星
联接器
两只猎犬
a newly married couple
新婚夫妇
arrange the chairs in couple
一对对地排放椅子
Ten couples took the floor.
场上有十对舞伴。
I have a couple of things to do.
我有几件事要做。
couple
vi.
成对
拥抱, 交媾
vt.
连在一起, 配合, 连接; 组合, 耦合
加倍
由...联想到; 把...同联系起来
Her name was coupled with his.
她的名字与他的连在一起。
a couple of
两三个, (少数)几个
be coupled with
和...联合, 结合
go [hunt, run] in couples
总是成双成对; 协力
coupled with
加上, 外加
in a couple of shakes
刹那间, 马上
It is not every couple that is a pair (=Every couple is not a pair.)
成双未必能配对。
couple in
耦合, 接入
couple ...to
把...结合到
couple up
把...耦联起来
antimony bismuth couple
锑铋热电偶
astatic couple
无定向的磁〔针〕偶
base metal couple
基金属热电偶
bigraded exact couple
双重分次正合偶
centrifugal couple
离心力偶
chromel-alumel couple
铬-铝热电偶
concentrated couple
集中力偶
controlling couple
控制力偶
copper-constantan couple
铜-康铜热电偶
deflecting couple
转矩, 偏转力偶
exact couple
正合偶
flame couple
热电偶
galvanic couple
电耦合
geosynclinal couple
地质偶地槽
gyroscopic couple
陀螺力矩
heater bridge wall couple
加热炉隔墙测温热电偶
heater flue couple
加热炉废气(或出气口)的热电偶
heater outlet couple
炉出口处热电偶
inertia couple
惯性力偶
instantaneous couple
瞬时力偶
junction couple
结式热偶
magnesium couple
镁电偶
magnetic couple
磁偶
main couple
建主桁架
nichrome alumino-copper couple
镍铬-铝铜热电偶
nichrome alumino-nickel couple
镍铬-镍铝热电偶
nursing couple
哺乳的母子(心理分析用语)
ordered couple
有序数偶
prime couple
素数偶
reducing couple
还原偶
restoring couple
回复力偶
resultant couple
合成力偶
righting couple
正位力矩
rocking couple
摆动力偶
roll couple
(轧机机架的)倾翻力偶
semi-exact couple
半正合偶
standard couple
标准热电偶
stress couple
应力偶
thermal couple
热偶
thermoelectric couple
热电偶
torsion couple
扭转耦合
turning couple
扭转力偶
twisting couple
扭力偶
unit couple
单位力偶
volta couple
伏打电偶
zinc couple
锌半电池, 锌电偶
zinc copper couple
套淀积铜的锌片; 锌铜偶
couple of forces
力偶
英汉电力大词典
couple
n.力偶,偶,连接
新英汉法学大词典
couple
n.夫妇 ,夫妻,配偶
英汉环境大词典
couple
n.偶,偶联,力电偶
新英汉石油技术词典
couple
耦,力偶,电偶,力矩;〔一〕双,〔一〕对
英汉能源大词典
couple
n.偶,对,力偶
英汉石油大词典
couple
n.偶
英汉冶金大词典
couple
n.偶,对
英汉医学大词典
couple
n.力偶,联结
英汉中医大词典
couple
n.配合,配偶
Oracle 9i比8i多了哪些新特性?
简要说:
9i更易于管理。
详细说:
并发集群,8i OPS升级为9i RAC,8i结点间用硬盘交换信息,9i结点间采用高速网线的缓存熔合(Cache Fusion)技术交换信息,交换速度提高100倍以上。
9i可以在线修改内核参数和内存分配,8i不行。
数据文件和表空间管理,8i手工管理,9i自动管理。
9i比8i增强了对ANSI SQL99的支持。
9i比8i增强了故障后的快速恢复(Fast-start)。
8i只支持物理备份(physical backup)数据库,9i还增加了支持逻辑备份(logical backup)数据库,使备份数据库除了作为主数据库的镜像外,还可以提供其他数据服务.
Oracle 10g比9i多了哪些新特性?
简要说:
10g支持网格(Grid),支持自动管理(Automatic Management)。
详细说:
10g的g是"Grid"缩写,支持网格计算,即,多台结点服务器利用高速网络组成一个虚拟的高性能服务器,负载在整个网格中均衡(Load Balance),按需增删结点,避免单点故障(Single Point of Faliure)。
安装容易,安装工作量比9i减少了一半。
新增基于浏览器的企业管理器(Enterprise Manager)。
自动存储管理(ASM),增删硬盘不再需要操作系统管理员设置的镜像、负载均衡、物理卷、逻辑卷、分区、文件系统,只要打一条Oracle命令,ASM会自动管理增加或删除的硬盘。
内存自动化,根据需要自动分配和释放系统内存。
SQL性能调整自动化。
免费提供基于浏览器的小应用开发工具Oracle Application Express(原名HTML DB),支持10g和9i R2。
快速纠正人为错误的闪回(Flashback)查询和恢复,可以恢复数据库、表甚至记录。
数据泵(Data Pump)高速导入、导出数据,比传统方法导出速度快两倍以上,导入速度快15--45倍。
精细审计(Fine-Grained Auditing),记录一切对敏感数据的操作。
存储数据的表空间(Tablespace)跨平台复制,极大的提高数据仓库加载速度。
流(Streams)复制,实现低系统消耗、双向(double-direction)、断点续传(resume from break point)、跨平台(cross platform)、跨数据源的复杂复制。
容灾的数据卫士(Data Guard)增加了逻辑备份功能,备份数据库日常可以运行于只读状态,充分利用备份数据库。
支持许多新EE选件,加强数据库内部管理的“Database Vault”,数据库活动的审计的(Audit Vault),数据仓库构建高级功能(Warehouse Builder Enterprise ETL, Warehouse Builder Data Quality).
Oracle 11g比10g多了哪些新特性?
11 g 扩展了 Oracle 独家具有的提供网格计算优势的功能,您可以利用它来提高用户服务水平、减少停机时间以及更加有效地利用 IT资源,同时还可以增强全天候业务应用程序的性能、可伸缩性和安全性。
利用真正应用测试(RAT)尽量降低更改的风险
11 g降低了数据库升级以及其他硬件和操作系统更改的成本,显著简化了更改前后的系统测试以便您可以识别和解决问题。例如:
利用 Database Replay,您可以在数据库级别轻松捕获实际的生产负载并在您的测试系统上重新播放,这样您可以全面测试系统更改(包括关键的并发特性)的影响。
SQL Performance Analyzer识别结构化查询语言 ) SQL(执行计划更改和性能回退。然后,可以使用 SQL Tuning Advisor解决识别的问题,方法是还原到原始的执行计划或进一步优化。
利用管理自动化提高 DBA 效率
Oracle 数据库 11 g继续致力于(从 Oracle9i数据库开始一直到 Oracle 数据库10 g)显著简化和完全自动化 DBA 任务。 Oracle数据库11 g中的新功能包括:
利用自学功能自动进行 SQL 优化系统全局区(SGA)和程序全局区( PGA)的内存缓存区的自动、统一调整新的 advisor用于分区、数据恢复、流性能和空间管理针对自动数据库诊断监视器 (ADDM)的增强,能够提供 Oracle 真正应用集群 (Oracle RAC)环境中的更好的性能全局视图以及改进的性能比较分析功能。
利用故障诊断快速解决问题
Oracle 数据库 11 g中新增的故障诊断功能使客户在发生错误后捕获 Oracle
Support所需的数据变得极为简单。这可以加速问题的解决,减少客户重现问题的需要。
尽量降低停机成本
通过 Oracle Data Guard快速恢复数据
Oracle Data Guard在本地和远程服务器之间协调数据库的维护和同步以便从灾难或站点故障快速恢复。 Oracle数据库11 g提供了大量显著的 Oracle Data Guard增强,包括
可以在物理备用系统上运行实时查询用于报表和其他目的
可以通过将物理备用系统暂时转换为逻辑备用系统执行联机的、滚动的数据库升级
..支持测试环境的快照备用系统
此外,物理和逻辑备用的性能都有提高。逻辑备用现在支持可扩展标记语言(XML)类型字符大型对象 (CLOB)数据类型和透明的数据加密。现在支持自动的、快速启动的故障切换以支持异步传输。
Oracle 数据库 11 g提供了几个针对自动存储管理的重要的高可用性增强,
包括:
..支持滚动升级
..自动坏块检测和修复
..快速镜像重新同步,该功能可以有效地重新同步存储网络连接性暂时丢失时自动存储管理镜像的存储阵列
自动存储管理的性能增强使得大型数据库可以更快地打开并减少 SGA 内存消耗。这些增强还允许 DBA增加存储分配单元大小以加快大型序列输入/输出 (I/O)
显著增加正常运行时间
Oracle数据库11 g使您可以应用很多一次性数据库补丁(包括诊断补丁),而没有停机时间。新的数据恢复 advisor通过快速识别故障根本原因、为 DBA提供可用的恢复选项,极大地减少了停机时间,在某些情况下,还通过“自我恢复”机制自动纠正问题。
Oracle 数据库 11 g还有其他高性能提高,包括
..自动编译数据库中的 PL/SQL 和 Java
..更快的触发器,包括更加有效地调用每行触发器
..更快的简单 SQL 操作
..更快的 Oracle Data Guard 和 Oracle Streams 复制
..与网络文件系统( NFS) 存储设备更快、更可靠的直接连接
..更快的升级
..大型文件更快的备份/还原
..更快的备份压缩
Oracle 数据库 11 g包括大量新的 ILM特性,例如
..新的分区功能,包括
.按父/子引用分区
.按虚拟列分区
Oracle数据库11 g还具有带 Oracle闪回数据归档的 Total Recall,使您可以在选定的表中查询以前的数据,从而提供了一种简单实用的向数据中添加时间维度的方法以便于更改跟踪、 ILM、审计和合规。
其他高可用性增强
Oracle 数据库 11g还有其他高可用性增强,包括:
Oracle闪回事务查询,提供带其他相关事务更改的流氓事务的按钮更改
具有更多可传输选项的增强的平台移植和数据移动,包括可传输分区、
模式和跨平台数据库
Oracle恢复管理器 (RMAN)支持 Windows Volume Shadow Copy
Service ( VSS )快照,从而实现与 Windows备份更紧密的集成
优化性能和可靠性
合规、法律取证以及整合数据仓库的趋势导致数据库的大小每两年就会增加
两倍,这极大地影响了大型数据库的存储成本和性能、可靠性以及可管理性
。Oracle 数据库 11 g使组织可以使用低成本的服务器和模块化的存储器轻
松伸缩大型的事务和数据仓库系统并提供快速的全天候数据访问。 Oracle 数
据库11 g提供新的创新特性以进一步提高要求极严格的环境的性能和可伸
缩性。
利用 SecureFiles安全地存储您的所有数据
SecureFiles 是 Oracle用于在数据库中存储大型对象) LOB (
(例如图像、大型文本对象或包括 XML、医学成像以及地理空间栅格对象在内的高级数据类型)的下一代产品。 SecureFiles提供能够完全与文件系统相媲美的卓越性能。此外,它还提供高级功能,例如智能压缩、透明加密以及透明的重复
删除。
通过联机事务处理压缩提高性能并尽量降低存储成本
Oracle 数据库 11 g支持联机事务处理 (OLAP)应用程序中常用的更新、
插入和删除操作的数据压缩。以前的 Oracle数据库版本支持数据仓库应用
程序常用的批量数据加载操作的压缩。 Oracle 数据库 11 g OLTP表压缩通
过更加高效地使用内存来缓存数据以及减少表扫描的 I/O提高了数据库性能
。利用 OLTP表压缩,您可以利用最小的处理开销达到 2 到 3倍的压缩
比。
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