查询词典 meta-

Early versions of search algorithms relied on webmaster-provided information such as the keyword meta tag, or index files in engines like ALIWEB. Meta tags provide a guide to each page's content.

早期版本的搜索算法依靠网站站长提供的信息，如关键词meta标签或者引擎的索引文件，如ALIWEB.meta标签提供了一个到达每个页面内容的向导。

Objective :To assess the overall value of lobulation sign and deep lobulation sign in the differential diagnosis of peripheral lung cancer and pulmonary tuberculoma in CT images.Methods : Firstly , articles about CT differential diagnosis between pulmonary tuberculoma and peripheral lung cancer were selected ,which were published in the period(from January 1990 to December 2008),and useful data were extracted.Then Meta-analysis was done using Meta-disc software,and SDOR value calculated.

方法搜集1990年1月至2008年12月国内外公然发表的关于四周型肺癌与肺结核球CT鉴别诊断的文献，对文献进行筛选，应用Meta-disc软件对符合条件的原始研究进行质量评估、异质性检验，计算阳性似然比、阴性似然比和诊断比值比，最后汇总敏感性和特异性，绘制SROC曲线并计算曲线下面积来综合评价分叶征及深分叶征在CT检查中对于四周型肺癌与结核球鉴别诊断的价值，进行敏感性和特异性分析。

This paper proposes the concept of meta-information, which is used to describes the result of Rough Sets Data Mining in information system, and a meta-information-based method for rule parallel mining.

与此同时，计算机网络存在大量的运算资源，充分利用这些资源是提高数据挖掘方法速度的有效途径。为此，本文提出引言在当前的信息化时代。

Methods Meta-analysis was use d to syntheticallyand quantitatively evaluate the studies included. The Peto method and random eff ects meta-analyses were applied to estimate combined effe c t values and their corresponding 95% confidence intervals of homogenous and inho mogenous data respectively.

方法应用Meta分析对纳入的多项研究进行定量综合分析；采用Peto法估计同质资料的综合效应值及其95%可信区间，异质资料则用随机效应模型。

With examples of some the few most updated sexological meta-analyses that have been performed, including those by my colleagues and me, it can be seen how modern sexological meta-analysis can make promising contributions to psychosocial psychiatry but has on the other hand particular serious problems awaiting solutions.

本文列举了性学方面一些最新的集合分析案例；这些案例有一部分部分是由我的同事和我本人操作的。从中可看出现代集合分析是如何对社会心理精神病学做出前景喜人的贡献的。然而，另一方面，仍有某些严重的问题亟待解决。

To reach one's own knowledge of Educational Technology, this thesis introduces "Meta-"concept creatively, proposes "Meta-theory of Educational Technology", guaranteeing that it is going on under scientific theoretical research mode to "refine and review".

针对教育技术自身知识的研究，本文创造性地引入"元"概念，提出"元教育技术理论"，从而保证此等"提炼与反思"是在科学的理论研究模式下进行的。

At last, the paper discusses the function of user interface and gives the method of selecting constraints according to information plus, the operating flow of association rule mining system based on meta-knowledge, and the idea of inducting meta-knowledge in theevaluating phase in order to unit evaluating rule to whole procession, thus can do better in enhancing mining efficiency and veracity.

最后，提出了利用信息增益选择约束的方法，给出了基于元知识的关联规则挖掘系统的操作流程，探讨了可视化的功能实现问题，提出了在结果评价阶段将评价规则作为元知识统一到挖掘过程中的思想，以利于提高全系统的挖掘效率和准确性。

Aface meta-data unit ( 12 ) extracts the face features from local areas cut out in different positions, thus creating face features as face meta-data.

脸部元数据装置(12)将该脸部特征从变换了剪切位置的多个局部领域中提取，以生成脸部元数据。

The main steps include as follows: CO2 is led into the mother liquor of sodium meta-aluminate to carry out carbon content decomposing; the primary separation between the aluminum and the gallium is realized by primary carbonatation to filter out sodium hydroxide; secondary carbonatation is carried out on the filtrate to obtain the deposit of the complex salt of gallium and aluminum; a sodium carbonate crystal is obtained after the filtered filtrate is condensed and vaporized; the deposit of the complex salt of gallium and aluminum is dissolved in the mother liquor of sodium meta-aluminate; the processes are repeated until the proportion of gallium and aluminum in the complex salt of gallium and aluminum is larger than 1/340; then the complex salt of gallium and aluminum is added into the NaOH liquor and electrolyzed, thus obtaining the metal gallium with a purity larger than 99.9 percent which reaches the level of 3; simultaneously, the byproducts of the aluminum hydroxide and the sodium carbonate during the process of carbonatation by steps are obtained.

主要步骤包括：向铝酸钠母液中通入CO 2 进行碳分分解，一次碳酸化实现铝镓的初次分离；过滤出氢氧化钠，滤液进行二次碳酸化获得镓铝复盐沉淀，过滤后滤液经浓缩蒸发获得碳酸钠晶体，铝镓复盐沉淀溶解在偏铝酸钠母液中，重复上述过程直至铝镓复盐中的镓铝比例大于1/340，将其加入到NaOH溶液中，电解可获得纯度＞99.9％的金属镓，达到3N级水平同时在分步碳酸化的过程中获得氢氧化铝和碳酸钠副产品。

The Liushuigou intermediate-basic meta-igneous complex at Guanzizhen, Tianshui, is composed mainly of metagabbro-metagabbro diorite-metadiorite, and the Baihua basic meta-igneous complex consists mainly of pyroxenite-gabbro-diorite-quartz diorite. They form a relatively complete comagmatic evolutionary series.

提要：天水地区关子镇流水沟变质中基性岩浆杂岩主要由变质辉长岩—辉长闪长岩—闪长岩组成，百花变质岩浆杂岩主要由辉石岩—辉长岩—闪长岩—石英闪长岩组成，构成较完整的同源岩浆演化序列。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。