查询词典 selection

The environmental factors that influenced ungulate habitat selection are various with different seasonal and spatial scales. All methods have their theoretical and practical aspects. Consequences of sympatric ungulates were discussed in this paper.From September 2003 to May 2004, habitat selection by sika deer was studied in Qingliangfeng Natural Reserve, Zhejiang Province, China.

在不同空间尺度上，影响有蹄类栖息地选择的环境因素亦不相同；在不同的季节和生活史阶段，有蹄类对栖息地类型的选择取决于季节性变化的植被因素和有蹄类在不同生活史阶段对栖息地的不同需求。

Typically, when a selection is made, any previous selection is unmade.

通常，当做出一个选择后，以前任何选择都作废了。

In the Options dialog window, under the Selection section, unselect and untick the Show selection ink after snips are captured option, and then press OK button.

在选项对话框窗口中，根据选择部分，取消和untick 显示选择油墨后snips捕捉选项，然后按下OK按钮。

Suggestions about the selection of the objects were put forward:(1) ultimate object:change the present one of "stabilize the valuta hence propel the national economy" to "stabilize the finance, propel the national economy, realize high employment and maintain an international balance of payments";(2) intermediate object selection: attend to not onl...

在中间目标的选择上，不仅要关注货币供应量这一指标，而且也要关注资本市场资产价格的变动。(3)在调控手段的运用上，一是要减少对法定存款准备率手段的依赖；二是要重视运用公开市场业务操作手段，增加公开市场业务操作的频率；三是要实行廉价的货币政策。(4)在我国中央银行宏观调控空间的拓展上，不仅要立足于货币市场，而且要为由货币市场传导向资本市场传导过渡创造条件

When processing the restrained conditions, we convert the restrained conditions into punish function and add it to fitness function which profits from the conventional method. We introduce the support vector machine to the selection operator, which increases the multiplicity of selection and increases the probability of the algorithm getting the overall optimal solution. Also, we use the adaptive probabilities of crossover and mutation in mixed GAs which enhances the efficiency of the algorithm. The result of tests about the system indicates that the improved genetic algorithm has more high convergence speed and better solution quality.

在生成初始种群时，不是简单的随机生成，而是用支持向量机对历史数据进行分类，用较优的一类历史数据作为初始种群；在约束条件的处理上，本文借鉴常规方法中的罚函数法，采用将约束条件作为罚函数包含到适应度评价中去的方法；在选择算子上，本文引入了支持向量机的方法，增加了选择的多样性，增加算法搜索到全局最优解的概率；同时针对交叉概率和变异概率在算法的前后期不同的情况，本文引入了Srinvivas等提出的动态自适应的方法，使得交叉概率和变异概率能够随着算法中个体的质量动态改变，提高算法的效率。

Jury selection is deemed so crucial to the litigation process that some law firms hire psychologists or jury-selection professionals to assist them in the voir dire process.

选择陪审团对于案件的审理过程是十分重要的，因此许多律师事务所聘请了心理学家或者是在选择陪审团方面的有关专家以在一切照实陈述过程中获得帮助。

Thirdly, basing on the content of feature selection related in Weka which is an open source data mining tool, we propose a new feature selection algorithm based on rough set theory, which viewed the set of core features as the initial set, and define a symmetrical uncertainty measurement method as features correlation evaluating criterion.

进而，在剖析数据挖掘开源工具Weka系统中的属性选择实现的相关内容的基础之上，提出了一种新的属性选择算法，该算法以粗糙集合理论中的核集作为属性选择的初始集合，以对称不确定性作为属性评价方法，综合考虑了属性与类之间和属性与属性之间的相关性。

This paper presents the seed origin selection and clone selection of white poplar in Tianshui district of Gansu province, which include 8 seed sources and 220 clones.

本文介绍了毛白杨8个种源， 220个无性系，在甘肃天水地区开展的种源选择试验及优良无性系筛选结果。

Through physical analysis of crude oil in Suizhong 36-1 Oilfield, initial selection is made on polymer viscosity reducing agent monomer accordantly and a series of viscosity reducing agents are synthesized, through result selection and research of all the synthesized viscosity reducing agents.

通过对绥中 3 6 1油田原油物性的分析，有针对性地对聚合物降粘剂单体进行了初选，继而合成了一系列聚合物降粘剂。

Including disruptive selection hypothesis and apostatic selection hypothesis and nonrandom mating hypothesis etc.

分化选择假说、异类选择假说和非随机性交配假说等。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。