查询词典 selection principle

No fragments were amplified from some loci of EST-SSRs, which may suggest the loss of these loci in mirror carp genome or sequence divergence at the primer binding sites. These null alleles may result from selection because functional genes are under more selection pressure than non-encoding loci. Overall, population genetic variation is high for each of the five mirror carp, and the differentiations are also significant among populations.

3在与功能基因相关的多个微卫星基因座位上，扩增产物呈现不同程度的缺失现象，这些无效等位基因的产生可能与结构基因在育种中受到人工选择的影响较大有关。

The results show that it is rational in Mond method for the parameter selection including combustion heat, primary components and mixed component. Finally, the paper proposes a few improvements on the computational model and the quantification parameter selection.

结果表明蒙德法中燃烧热、重要物质选取、混合物质等参数选取是合理的，同时阐明了偏差传递过程及对评价结果的影响；最后针对具体问题提出了建议和解决办法，如改进计算模型和量化参数取值等。

In order to understand the merits, evaluation precision and adaptability of Mond method in quantitative safety evaluation, this study investigates the subjective deviation and the rationality of the parameter selection, the temperature effect on combustion heat, the key material selection, the effect of mixed materials and the error propagation in Mond algorithm.

为分析与讨论蒙德法优缺点、评价精度及适应性，对参数取值的主观偏差影响、参数选取的合理性、对蒙德法中燃烧热的温度、单元中重要物质选取、混合物质影响以及Mond法算法误差传递进行了研究，采用误差传递法对偏差的传递进行了理论分析与论证。

The mold was designed by the Mission directions, through the analysis, in the technical requirement of vase tops. The designed included: vase tops sample selection of material and injection machine, indication of the mold cavity number, selection of The branch mould, equipment of mold cavity, pouring system, structure and style of drawing of patterns ,cooling system, structure and admittedly fix of hollow and Standard, style of exhaust.

此次课程设计通过对点滴瓶瓶塞的生产技术要求的分析，以模具设计任务书为依据设计模具，设计包括熟悉瓶塞图样，材料的选用，注塑机的选择，型腔数目的确定，分型面的选择，型腔的配置，浇注系统，脱模方式，冷却系统和脱模机构，凹模和型芯的结构和固定方式，排气方式等。

Artificial selection is a special kind of natural selection.

人工选择是一种特殊的自然选择。

Basing on the future of fractal,this paper introduces the density analysis method and points out the defects of existing feature selection method based on fractal dimension.Then a feature selection method based on fractal and changes of neighborhood space density is proposed.

根据数据集的分形特征，引入了密度分析方法，指出了当前基于分形维数的属性选择方法的不足，提出了一种基于分形和邻接空间密度变化的属性选择方法。

Based on the existed research, the study found that the selection of these subjects have rarely been studied, so the selection of this theme has significance in the information society geography theory and can rich the tourist sites in geography study and can guide new thoughts. The second part discusses distance decay effects in web sever when attenuation theory be chose in electronic age location. It considers 7 factors: knowledge spillover environment and yi to technological innovation information reaches nature, decision-maker behavior,human capital factor, supply chain environment, yi to the developed communication net and network of communication lines reaches nature, agglomeration factor, commercial and trade circumstance. Part three studies location significance of outdoor sports websites. Though investigating and analyzing our country 30 cities's outdoor sports websites in China, the author gives out the location characteristics of outdoor sports websites in actual geographical space, and take Shijiazhuang for example, the author analyzes the stadiums gathering effection to the outdoor sports websites which are near the stadiums, and dividing the location into gathering area and non-gathering area the author studies the effects for information flow guiding people flow. Part four is the conclusion which includes four conclusions reached by this article.

在国内外已有研究的基础上，发现本文的选题在国内外研究中基本处于空白状态，对于丰富信息社会地理学理论及引导旅游网站在地理学的研究新思维有重要意义；第二部分论述了服务器距离衰减原理在电子服务区位选择中的作用，并分别从知识溢出环境和对技术创新信息的易达性、决策者行为、人力资本因素、供应链环境、对发达通讯网和交通网的易达性、集聚因素和经济贸易因素七个方面进行考量；第三部分通过对我国30个城市的户外运动网站地址进行调查分析，总结出户外运动网站在实际空间分布上的区位特征，并对聚集区与非聚集区的区位在信息流导引人流中的作用—以石家庄市户外运动网站受临近体育场聚集效应的影响为例，作了实证分析；第四部分为结论，总结了本文研究所得出的四点结论。

This article outlines the critical elements of journal selection for index medicus/medline and the journal selection process for indexing at nlm, and introduces some measures for the journal of chinese integrative medicine being indexed in index medicus/medline.

本文介绍了《医学索引》选刊的标准和程序、对期刊的收录方法及其目前收录中国期刊的情况，并介绍了《中西医结合学报》被《医学索引》收录的体会。

Based on the Fact Sheet: Journal Selection for Index Medicus/MEDLINE and the Fact Sheet: Response to Inquiries about Journal Selection for Indexing at NLM, this article was to introduce the MEDLINE database, the process of applying a journal to be indexed in the MEDLINE database and review process. Meanwhile, this paper was to share Tzu Chi Nursing journal Editor's experiences in applying the Tzu Chi Nursing Journal to be indexed in the MEDLINE database, and hopefully these experiences can provide other nursing publishers with a reference.

本文参考「MEDLINE期刊筛选条件之说明」与「申请加入国家医学图书馆资料库之说明」此两份文件，兹对MEDLINE资料库、申请加入MEDLINE资料库之过程以及审查过程做一简明介绍，同时也分享慈济护理杂志总编辑向「美国国家医学图书馆」提出申请「慈济护理杂志」加入MEDLINE资料库之经验谈，期望此经验可做为其它护理杂志社的参考。

In the apparatus design aspect, at first we design an optical tweezers instrument with one optical trap,and introduce detailedly the selection rule of the every structure of the instrument,especially discuss the selection of the laser optical source and the microscope object lens.

在仪器的设计方面，对如何建立一套单光阱光镊仪器系统做了初步的调研，详细介绍了单光镊系统各结构的选取原则，其中重点讨论了激光器光源和显微物镜的选取。

Mr. Putin said there were signs of genocide against the Ossetian people.

普京说，有迹象表明对南奥塞梯人进行了种族清洗。

What I'm trying to say, Tristan is...

特瑞斯坦。我想说的是。