heterogeneous和different

高分恳请高人帮我翻译下，本人英文不好。

heterogeneous 。

英[ˌhetərəˈdʒi:niəs] 。

美[ˌhɛtərəˈdʒiniəs, -ˈdʒinjəs] 。

adj. 各种各样的; 成分混杂的; 。

[例句]The resource pool is heterogeneous: Hosts have different processor types and operating systems.。

资源库是异质性的：主机电脑会有不同的处理器和作业系统。

专业英语翻译

In recent years, the data continues to expand the scale and scope of sharing data form is more and more extensive, diversification. For example, by Internet application number of pages are growing at an alarming rate, these data form a huge, complex, heterogeneous data environment. According to China Internet network information center (CNNIC) issued by the China Internet network for the 23rd time development, "statistics report by end of 2008, China's total more than 160 billion web pages, a 90 percent increase from the previous year. The traditional data integration methods of data integration of attention after while ignoring the target, the data cleaning and intermediate process. But among data collection, different levels, different sources, inconsistent quality. Therefore, the analysis of the evolution process and data, then the correctness and quality evaluation data, and the modified data are particularly important.。

Since 1990, y. Wang, etc.. Richard research heterogeneous database system data since the lineage of [1], data lineage got more and more attention. Many researchers from different angles, defines the lineage of data, there are several effect:。

 1991, d. p. Lanter defines the lineage of GIS data about data (lineage) is this item of data and the evolution process of the original material information [2].。

 Woodruff, a. 1997 as data definition data of lineage lineage) is concerned with the historical data, including data collection of information source of origin (the identifier, data files, documents and data of operation information evolution (algorithm and the corresponding parameter) [3].。

 2000, y. Cui etc data definition data of lineage lineage or provenance) is the collection of information about the evolution of data [4].。

 in 2001, p. Buneman etc in database application data in the data definition provenance lineage, lineage or pedigree) is a database of data source data and process [5].。

 2005, y. l. Simmhan definition of such lineages provenance data (data) is used to identify the evolution history of output data sources of data and information [6].。

 2007, b. Glavic defined as the data, data lineage provenance lineage or pedigree) including data item and currently has form of process and experience of the source data [7].。

Based on the data of the definition, we produced, and over time and evolution of the whole process of the lineage information called data data (provenance). According to the data, data definition of henei contains static data lineage information and dynamic data evolution, but many researchers and no difference between the two parts 4,5,7 []. In different application situation and the data, data or a lineage provenance difference, the former focuses on tracking database data sources, while the latter focus on different application data in describing the origin and evolution process of the information, including more rich metadata.。

The integration of information technology on traditional forms of data, and management of the object is still data. And now in large heterogeneous environment to provide data sharing, this makes the traditional database technology (notice data format) in the data model, data integration, and index etc ragged, under this background, Google, yahoo, baidu, the concept of space data received extensive attention. No matter be traditional integration of information technology or data space technology is realized in the heterogeneous data sources, including data sharing data in different lineage contains data between the evolution process of the same data and the evolution of internal data source.。

望采纳、

求化学高手解释下 homogeneous和heterogenous的区别的意思

通过没有时间意识的互联网实现对时间有意识的控制。

摘要

客户认为取得有质量的服务最正常的途径是通过事先的交易谈判.很遗憾,现有的网络条件不能满足人们要取得高质量服务对时间的要求.本文将说明怎样通过没有时间意识的互联网实现对时间有意识的控制,而不是设计一套新的完整的方法来实现对时间有意识的管理.通过对时间和资源的结合进行开发,人们对时间控制领域现已取得的成绩进行重新利用才成为可能.我们法则的两个重点是分解功能和转移顾虑.首先,我们正式提出方法和法则;然后,举出具体例子对其分析.同时也进行了可测量性的分析,这个分析说明了方法的适用范围.。

1.基本原理和方法

近几年来,人们越来越关注如何通过互联网的帮助进行谈判以实现一定质量的服务交易.为解决这一问题而设计机构体系时遇到了很多的挑战,这些挑战主要分为两类:网络管理方面的和具体的交易谈判方面的.从网络管理方面来看,主要问题是怎样建立一个有效的机构来保障数据包的传送.互联网的最大能力已不再能满足来自网络日益增长的种类繁多的申请要求.人们从服务质量和通讯工程两个方面对互联网的管理提出了不同和补充的方法.服务质量取决于对网络中数据包的分类区别和安排.而通讯工程则依赖于通过对网络内数据包传输路线的控制以很好地开发现有资源.这两种方法的结合有助于实现网络资源的优化.。

高分求化学类英汉对照文章~不要翻译器翻译的~~有价值~~加分

1、homogeneous mixture是均匀混合物；heterogenous mixture是非均匀混合物。

2、均匀混合物是指两种或多个物质混合在一起，但是肉眼并不能完全区分出两种或多种物质，比如说盐水就是均匀混合物。从盐水中，你并不能区分出盐和水。非均匀混合物是指两种或多个物质混合在一起，肉眼可以区分出混合物中的每一个物质，比如说披萨就是非均匀混合物。从披萨中，你可以看到披萨饼，各种蔬菜，等等不同的物质。

3、homogeneous：英 [ˌhɒməˈdʒi:niəs]   美 [ˌhoʊməˈdʒi:niəs]  adj.均匀的;同性质的，同类的;由相同（或同类型）事物（或人）组成的;[数]齐性的，齐次的。例如：Homogeneous and Heterogeneous topologies can be mixed. 同构拓扑和异构拓扑可以混合使用。

heterogenous：英 [ˌhetə'rɒdʒənəs]   美 [ˌhetə'rɒdʒənəs]  adj.异种的，异质的，异源的。例如：Deletion of dnd Gene Cluster in Salmonella enterica and Heterogenous Expression 沙门氏菌中dnd基因簇的缺失与异源表达。

扩展资料：

混合物的分类形式：

按形态

1．液体混合物。其中细分：浊液，溶液，胶体。

2．固体混合物。例如：钢铁，铝合金。

3．气体混合物。例如：空气

按是否均匀

混合物分为均匀混合物和非均匀混合物。例如，空气、溶液属于均匀混合物，泥浆属于非均匀混合物。

柯南中鲁邦三世的英文介绍！

我自己翻译的 可以去我blog看看http://hi.baidu.com/xfsuper/blog/item/0716c43959b10ef43b87ce1a.html。

化学元素Chamical Elements 。

化学元素

The alkali metals, found in group 1 of the periodic table (formerly known as group IA), are very reactive metals that do not occur freely in nature. These metals have only one electron in their outer shell. Therefore, they are ready to lose that one electron in ionic bonding with other elements. As with all metals, the alkali metals are malleable, ductile, and are good conductors of heat and electricity. The alkali metals are softer than most other metals. Cesium and francium are the most reactive elements in this group. Alkali metals can explode if they are exposed to water. 。

碱金属被发现在元素周期表的ⅠA族，是非常活泼的金属而不在直接自然界中出现。这些金属的原子最外电子层只有1个电子。因此非常容易失去电子而与其他元素构成的离子化合物。像所有金属一样，他们具有很好的延展性并且是电和热的良导体。他们比大多数金属柔软。Cs和Fr是他们中最活泼的。碱金属接触水会爆炸。

The Alkali Metals are: 。

Lithium Sodium Potassium Rubidium Cesium Francium 。

碱金属包括：Li，Na，K，Rb，Cs，Fr 。

The alkaline earth elements are metallic elements found in the second group of the periodic table. All alkaline earth elements have an oxidation number of +2, making them very reactive. Because of their reactivity, the alkaline metals are not found free in nature. 。

碱土金属是ⅡA族中的金属元素。所有的碱土金属元素的化合价都是+2，这使他们非常活泼，因为他们非常活泼，也不在自然界中直接出现。

The Alkaline Earth Metals are: 。

Beryllium Magnesium Calcium Strontium Barium Radium 。

碱土金属金属包括Be，Mg，Ca，Sr，Ba，Ra 。

The 38 elements in groups 3 through 12 of the periodic table are called "transition metals". As with all metals, the transition elements are both ductile and malleable, and conduct electricity and heat. The interesting thing about transition metals is that their valence electrons, or the electrons they use to combine with other elements, are present in more than one shell. This is the reason why they often exhibit several common oxidation states. There are three noteworthy elements in the transition metals family. These elements are iron, cobalt, and nickel, and they are the only elements known to produce a magnetic field. 。

元素周期表中ⅢB族到ⅡB族的38个元素叫做过渡金属。像所有金属一样，这些金属既有好的延展性也易锻造，并且是电和热的良导体。有趣之处是他们参加反应的电子层超过1层，这也是他们化合价不确定的原因（这句话不懂）。引人注目的是Fe，Co和Ni，他们是已知仅有的能产生磁场的物质的组成元素。

The Transition Metals are: 。

Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Ununnilium Unununium Ununbium 。

过渡金属包括：Sc,Y,Ti,Zr,Hf,Rf,V,Nb,Ta,Db,Cr,Mo,W,Sg,Mn,Tc,Re,Bh,Fe,Ru,Os,Hs,Co,Rh,Ir,Mt,Ni,Pd,Pt,Uun,Cu,Ag,Au,Uuu,Zn,Cd,Hg,Unb 。

The 7 elements classified as "other metals" are located in groups 13, 14, and 15. While these elements are ductile and malleable, they are not the same as the transition elements. These elements, unlike the transition elements, do not exhibit variable oxidation states, and their valence electrons are only present in their outer shell. All of these elements are solid, have a relatively high density, and are opaque. They have oxidation numbers of +3, ±4, and -3. 。

这七个被分为“其他金属”的元素位于ⅢA——ⅤA族。他们同样具有很好的延展性和段造性，但是和过渡金属不同。这些元素，不像过渡金属那样显示出可变的化合价，他们只有最外层电子参加反应。所有这七个元素都是固体，而且密度很大，并且不透明。他们的化合价一般是±3，±4。

The "Other Metals" are: 。

Aluminum Gallium Indium Tin Thallium Lead Bismuth 。

其他金属包括Al，Ga，In，Tl，Pb，Sn，Bi 。

Metalloids are the elements found along the stair-step line that distinguishes metals from non-metals. This line is drawn from between Boron and Aluminum to the border between Polonium and Astatine. The only exception to this is Aluminum, which is classified under "Other Metals". Metalloids have properties of both metals and non-metals. Some of the metalloids, such as silicon and germanium, are semi-conductors. This means that they can carry an electrical charge under special conditions. This property makes metalloids useful in computers and calculators 。

半金属是金属和非金属之间的过渡区。这条线从B，Al一直画到Po和At。之中唯一的特例是Al，它属于其他金属。半金属兼有金属和非金属的特性。例如Si和Ge，他们是半导体，也就是说他们在特殊情况下他们可以导电。这种特性使半金属在计算器和电脑领域很有用。

The Metalloids are: 。

Boron Silicon Germanium Arsenic Antimony Tellurium Polonium 。

半金属包括B，SI，Ge，As，Sb，Te，Po 。

Non-metals are the elements in groups 14-16 of the periodic table. Non-metals are not able to conduct electricity or heat very well. As opposed to metals, non-metallic elements are very brittle, and cannot be rolled into wires or pounded into sheets. The non-metals exist in two of the three states of matter at room temperature: gases (such as oxygen) and solids (such as carbon). The non-metals have no metallic luster, and do not reflect light. They have oxidation numbers of ±4, -3, and -2. 。

非金属是是元素周期表中ⅣA-ⅥA族的元素。非金属不能很好的导电或导热，与金属元素相反，他们不能被锻造成丝或箔，反而非常易碎。非金属元素在室温下为固态或液态。非金属没有金属一样的光泽，也不反光，他们的化合价为±4, -3, 和 -2. 。

The Non-Metal elements are: 。

Hydrogen Carbon Nitrogen Oxygen Phosphorus Sulfur Selenium 。

非金属元素包括H，C，N，O，P，S，Se 。

The halogens are five non-metallic elements found in group 17 of the periodic table. The term "halogen" means "salt-former" and compounds containing halogens are called "salts". All halogens have 7 electrons in their outer shells, giving them an oxidation number of -1. The halogens exist, at room temperature, in all three states of matter: 。

Solid- Iodine, Astatine Liquid- Bromine Gas- Fluorine, Chlorine 。

卤素是ⅦA族中的5钟非金属元素，卤素的意思来源于希腊语halos（盐）和gennan（形成）两个词。在中文里，卤的原意是盐碱地的意思。所有的卤族元素的原子最外层都有7个电子。这使他们显现-1价。在室温下卤族元素构成的物质可表现为任何状态。

The Halogens are: 。

Fluorine Chlorine Bromine Iodine Astatine 。

卤族元素包括F，Cl，Br，I，At 。

The six noble gases are found in group 18 of the periodic table. These elements were considered to be inert gases until the 1960's, because their oxidation number of 0 prevents the noble gases from forming compounds readily. All noble gases have the maximum number of electrons possible in their outer shell (2 for Helium, 8 for all others), making them stable. 。

6种稀有气体是元素周期表0族的元素。在20世纪60年代以前，他们被认为是惰性气体，因为他们0的化合价让他们不与其他元素反应。所有稀有气体的最外电子层都满了。（He是2，其他是8个电子），使它们稳定。

Helium Neon Argon Krypton Xenon Radon 。

稀有气体包括He，Ne，Ar，Kr，Xe，Rn 。

The thirty rare earth elements are composed of the lanthanide and actinide series. One element of the lanthanide series and most of the elements in the actinide series are called trans-uranium, which means synthetic or man-made. All of the rare earth metals are found in group 3 of the periodic table, and the 6th and 7th periods. The Rare Earth Elements are made up of two series of elements, the Lanthanide and Actinide Series. 。

三十个稀土金属是稳定的La系和Ac系元素。La系中的一个和Ac系中的大多数被人们叫做反铀元素，或者是人造的。所有稀土元素都位于第三族，第六和第七族，被分为La系和Ac系（……）。

The Rare Earth Elements are: 。

Lanthanide Series 。

Actinide Series 。

Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium 。

Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium 。

稀土金属包括La,Ce,Pr,Nd,Pm,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb,Lu,Ac,Th,Pa,U,Np,Pu,Am,Cm,Bk,Cf,Es,Fm,Md,No,Lr。

这一篇还可以

英国化学家戴维，1778年出生于彭赞斯。因他父亲过早去世。母亲无法养活五个孩子，于是卖掉田产，开起女帽制作店来。但他们的日子还是越过越苦。 戴维从小就勇于探索，他的兴趣很广泛。他在学校最喜欢的是化学，常常自己做实验。

17岁的时候，戴维到博莱斯先生的药房当了学徒。既学医学，也学化学，除读书外，他还做些较难的化学实验，为此，人们送他一个“小化学家”的称号。

一天，一个叫贝多斯的物理学家，登门拜访了这位“小化学家”，并邀请他到条件很好的气体研究所去工作。

戴维欣然受聘，来到贝多斯的研究所。该所想通过研究各种气体对人体的作用，弄清哪些气体对人有益，哪些气体对人有害。

戴维接受的第一项任务是配制氧化亚氮气体。戴维不负重望，很炔就制出这种气体。当时，有人说这种气体对人有害，而有的人又说无害，各持己见，莫衷一是。制得的大量气体，只好装在玻璃瓶中留着备用。

1799年4月的一天，贝多斯来到戴维的实验室，见已制出许多氧化亚氮，高兴地说：“啊，不错，您的工作令人十分满意……”贝多斯夸奖戴维的话还未说完，他一转身，不小心手把一个玻璃瓶子碰到地下打碎了。

戴维慌忙过来一看，打碎的正是装氧化亚氮的瓶子，忙问：“手不要紧吧？”

“没事。真对不起，我把您的劳动成果浪费了。”贝多斯边说边拣碎玻璃。

“没啥，我正要作试验呢，想看看这种气体对人究竟会有什么影响，这样一来还省得我开瓶塞……”戴维的话还未说完，被贝多斯反常的表情弄得惊慌失措。

“哈哈哈……”一向沉着、孤僻、严肃得几乎整天板着面孔的贝多斯，今天突然大笑起来，“戴维，哈哈哈……我的手一点儿都不疼，哈哈哈……”“哈哈哈……”刚才还处于惊慌的戴维也骤然大笑，“真的不疼？哈哈哈……”

两位科学家的笑声，惊动了隔壁实验室的人。他们跑来一看，都以为他俩得了神经病。等一阵狂笑之后，两人方逐渐清醒。贝多斯被玻璃划破的手指感到疼痛，原来氧化亚氮不仅使他俩狂笑，而且使贝多斯麻醉不知手痛。

事隔不久，戴维患了牙病，便请来牙科医生德恩梯斯·舍派特。医生决定把他的坏牙拔掉。当时根本没有什么麻醉药，医生硬把牙齿给拉了下来，疼得戴维浑身冒汗。这时，他猛然想起前不久发生的事——贝多斯手划破了，可闻了那氧化亚氮后却一点也没感觉疼。于是，他赶忙拿过装有氧化亚氮的瓶子连吸几口，结果，他又哈哈大笑起来，同时也感觉不到牙痛了。

经过进一步研究，戴维证实氧化亚氮不仅能使人狂笑，而且还有一定的麻醉作用。戴维就为这种气取了个形象的名字笑气。

戴维将关于笑气的研究成果写进《化学和哲学研究》一书，立即轰动了整个欧洲。外科医生们纷纷用笑气做麻醉药，使本来满是刺耳的喊叫声的手术室，弥漫着一片笑声。病人的痛苦也轻多了。

戴维发现笑气的时候，年仅21岁。从此，他成了闻名欧洲的青年科学家。

后来，戴维继续从事科学研究，首先制取了金属钾、钠、钙、镁、钡和非金属硼，还发明了矿工用的安全灯。为人类做出了很大的贡献。

British chemist David, was born in 1778 in Penzance. As a result of his father's premature death. Not the mother of five children to feed, then sell the farm, started millinery shop to produce. But their day is over the more bitter. David from an early age have the courage to explore his interest in a wide range. His favorite is the school of chemical, often their own experiments. 。

17-year-old, Mr. David to the BLS as a pharmacy apprentice. Both the medical school, school chemistry, in addition to reading, he's also more difficult to do chemical experiments, for which he was sent to a "chemist". 。

One day, a man named Tony Meadows physicist, had to visit the "chemist" and invited him to the very good conditions for the gas to the work of the Institute. 。

However, Dai Weixin employed, Tony came to the meadows of the Institute. The study through a variety of gases on the human body, out of gas which were beneficial and which harmful gases. 。

David to accept the first task is the preparation of nitrous oxide gas. David does not live up, it is such a system on acetylene gas. At that time, it is said that this harmful gas, and some people said that sound, to hold different views, rather than consensus. Obtained a large number of gas, had no choice but to keep in glass bottles mounted on a stand-by. 。

In April 1799 of the day, Tony came to David Doss of the laboratory, see the system has a lot of nitrous oxide, said happily: "ah, yes, your work is very pleased with the ... ..." Tony praised David Doss The words have not yet finished, he turned a careless hand on the ground floor of a glass bottle smashed across sub. 。

David hurriedly looked around, broke the bottle of nitrous oxide is loaded, Mangwen: "It does not matter in hand?" 。

"Never. I'm sorry, I am your labor lost." Meadows said, picking shellfish broken glass. 。

"Nothing, I am going to trial, would like to see this person on the gas What does it mean, this way also to save me ... ... cork" David's words have not yet finished, Tony Adams and more abnormal Look up panic. 。

"Ha, ha, ha ... ..." always been cool, eccentric, a serious Banzhuomiankong almost the whole day of the Tony Meadows, all of a sudden today, laughing, "David, Ha, ha, ha ... ... My hands are a little pain, ... Ha, ha, ha ... "" Ha, ha, ha ... ... "in a panic just yet David is also a sudden laugh," really hurt? ... Ha, ha, ha ... " 。

The two scientists laughter, alerted the laboratory next door. They came to see one, they all thought had neuropathy. Kuang Xiao, and so on for a while, the two sides gradually clear. Tony Adams has been more than cut through the glass finger pain that Kuang Xiao nitrous oxide not only they but also the multi-Tony Adams hand I do not know of narcotic pain. 。

Soon after, David is suffering from dental problems, we have invited dentists Dehn Ossetia Pat Adams homes. Doctors decided his bad tooth pulled out. At that time, there was not any anesthetic, the doctor forcibly teeth to pull down, David painful sweating all over. At this time, he suddenly reminded of what happened long ago - more than Tony Adams cut through the hand, can be heard and that the nitrous oxide after it did not feel a little pain. As a result, he quickly took the bottle of nitrous oxide with even a few smoke as a result, he laughed, at the same time feel a toothache. 。

After further study, confirmed that David nitrous oxide Kuangxiao not only make the people, but also a certain narcotic effect. David was on the air that took the name of the image of a laughing gas. 。

David will be laughing gas on the results of research into the "chemical and philosophical studies", the immediate sensation throughout Europe. Surgeons who have used nitrous oxide anesthesia to do so have been full of ear-piercing cries of the operating room, filled with a laugh. Patients are suffering more than the light. 。

David found that nitrous oxide, as young as 21 years old. Since then, he has become famous for Europe's young scientists. 。

Later, David continued to engage in scientific research, first of all, making the metal potassium, sodium, calcium, magnesium, boron and non-metallic barium, also invented the miner's safety lamp used. Mankind has made a great contribution.。

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