搜索引擎的种类与使用技巧中英文翻译
The kinds of search engines and the use skill
  摘要随着信息技术的发展，网络的迅速普及，搜索引擎在网络用户的生活中扮演着越来越重要的地位，了解并能熟练使用搜索引擎成为大众的必修课。对搜索引擎的基本知识和种类作简要介绍，并结合亲身实践介绍几种实用的搜索技巧。
Abstract] along with the development of information technology, network rapid popularization, search engine plays a more and more important in the life of network user's position, understand and familiar with all the search engines become the compulsory subject of the public. For a brief introduction of the basic knowledge of the search engine and type, and combining the personal practice introduces several practical search techniques.
 
  [关键词]搜索引擎 种类 技巧
[key words] type search engine technique
 
  一、搜索引擎概述
One, the summary of a search engine
 
  搜索引擎是指根据一定的策略、运用特定的计算机程序搜集互联网上的信息，在对信息进行组织和处理后，为用户提供检索服务的系统。它主要是用于检索网站、网址、文献信息等内容。随着网络技术的发展，各种搜索引擎层出不穷，目前流行的搜索引擎主要是帮助用户搜索表层信息，如google、百度、雅虎等。
Search engine refers to according to certain strategy, using specific computer program to collect information on the Internet, in the information organization and processing, to provid
e users with retrieval service system. It is mainly used to retrieve information content such as website, website, literature. With the development of network technology, all kinds of search engines emerge in endlessly, the popular search engine surface layer mainly is to help users search for information, such as Google, baidu, yahoo, etc.
 
profile是什么意思中文翻译
  二、搜索引擎的分类
Second, the classification of the search engine
 
  目前，主流的搜索引擎有如下几类：
At present, the mainstream search engine has the following categories:
  （一）全文索引
(a) a full-text index
  根据搜索结果来源的不同，全文搜索引擎可分为两类，一类拥有自己的检索程序（Indexer），俗称“蜘蛛”（Spider）程序或“机器人”（Robot）程序，能自建网页数据库，搜索结果直接从自身的数据库中调用，上面提到的Google和百度就属于此类；另一类则是租用其他搜索引擎的数据库，并按自定的格式排列搜索结果，如Lycos搜索引擎。
According to different sources of search results, the full text search engine can be divided into two categories, category own retrieval program (Indexer), commonly known as "Spider" (spiders) program or "Robot (Robot)", can build web databases, search results directly from its own database calls, the above mentioned Google and baidu is such; Another type of database is to rent the other search engines, and follow the format set the sort search results, such as search engine Lycos.
  （二）目录索引
(2) indexes
  目录索引虽然有搜索功能，但不能称为真正的搜索引擎，只是按目录分类的网站链接列表而已。用户完全可以按照分类目录到所需要的信息，不依靠关键词进行查询。目录索引中最具代表性的是Yahoo、新浪分类目录搜索。
Indexes, although there is a search feature, but cannot be called a real search engine, just according to the catalogue list of web links. Users can fully in accordance with the classification catalogue to find the information they need to, don't rely on keywords for the query. Indexes, Yahoo, sina is the most representative in catalog search.
  （三）元搜索引擎
(3) the meta search engine
  元搜索引擎接受用户查询请求后，同时在多个搜索引擎上搜索，并将结果返回给用户。著名的元搜索引擎有InfoSpace、Dogpile等。中文元搜索引擎中具代表性的是搜星搜索引擎。在搜索结果排列方面，有的直接按来源排列搜索结果，如Dogpile；有的则按自定的规则将结果重新排列组合，如Vivisimo。
Meta-search engine accept user query requests after search on multiple search engines at the same time, and return the results to the user. Famous metasearch engines have InfoSpace, Dogpile, etc. Chinese yuan search engine search star is representative in search engines. Arrange aspect in the search results, or just arrange the search results according to the source, such as Dogpile; Others according to the set of rules will result to permutation and combination, such as Vivisimo.
 
  三、搜索引擎使用技巧
Three, search engines use skills
 
  （一）关键词的选择
(a) selection of keywords
  目前搜索引擎不具备智能识别能力，较人脑而言还很“”，往往不能很好地把握用户到底想要什么，只会在现成的数据库索引中查相匹配的关键词。因此，选择合适的关键词是成功检索的第一步。关键词的选择虽然没有什么定式，不过也有一些规律可循，在提取关键词时力求做到规范，避免口语化，便能达到事半功倍的效果。此处用特殊实例来说明：
Current search engines don't intelligent identification ability, is in terms of the human brain is still very "stupid", are often not well grasp what users want, only to look for in the existing database index that matches the keywords. Therefore, choosing the right keywords is the first step to successful retrieval. What keyword choice although there is no pattern, but there are some rules to follow, when extracting keywords to do specifications, avoid colloquial, can achieve twice the result with half the effort. Here use specific examples to illustrate:
  1．使用特定词汇。有时输入的关键词由于过泛而没有被收录在搜索引擎的数据库索引中，这时可以选择与该主题相关且更具体的词汇。例如，欲搜索某些期刊的投稿，一般策略是在搜索框内输入“xxx杂志编辑部”，对知名度高、信息化程度高的期刊而言，一般都能
搜出相应的email，可信息化程度不高的期刊就比较难。此时可以尝试如下两种方法提高搜索效率：（1）同时输入两个关键词，缩小检索范围，即“xxx杂志email”或“xxx杂志”；（2）关键词中加入关键信息，即“xxx杂志@”。因为任何中均有“@”，“@”成了查的关键符号。通过这两种方法，很容易就能将期刊编辑部的搜到。