It stuck, because natural selection favors new traits that give their owners a survival advantage.
它能被保存下来是因为自然只选择那些有生存优势的新特点。
Now at version 5, Preview has undergone numerous improvements over time, but its Annotations toolbar, easy selection of columns, and image editing capabilities emphasize its advantage for users.
目前版本5的预览，随着时间的推移虽经历了无数次改进，但它的注释工具栏、专栏的简易选取以及图像编辑能力强调了作为其使用者的优点。
The best guesses are that feathers evolved either for insulation (as fur did in mammals) or for display, and that natural selection took advantage by turning them into a means of transport.
对此最好的猜测便是，羽毛的出现要么是为了护身(就像哺乳动物的毛皮)，要么就是为了作秀；此外，自然选择就择优而把某些动物的羽毛变成了它们的交通工具。
Differences between people and the opportunity for natural selection to take advantage of it have diminished.
人们之间的差异和自然选择利用这种差异的机会已经消失了。
In the paper the reminiscent treatment about non-tendon tissue repairing ACL, advantage of replacement, diagnosis of injury ACL and selection of operation indication were discussed.
就非腱性组织修复ACL临床治疗回顾，替代修复的优点，以及ACL损伤的诊断与手术时机选择问题予以讨论。
The biggest advantage of genetic selection, however, is probably not that it makes it possible to grow transgenic crops (" Frankenfoods "), but that it allows faster and more precise breeding.
但是，基因选择的最大优势或许不在于使得种植转基因作物(转基因食品)成为可能，而是他可以使育种更快和更准确。
The article expounds advantage and disadvantage of metallic carrier catalyzer and presents material selection of metallic carrier, constructional design and manufacturing process of the catalyzer.
阐述了金属载体催化剂的优点和不足，对金属载体的材料选择、结构设计和金属载体催化剂的制造工艺进行了介绍。
The present paper provides a brief introduction of the principles of data selection and tree-construction methods, and discusses about their advantage and disadvantage points.
通过讨论挑选数据的原则及存在的问题，介绍了几种构树方法的基本原理及步骤，并列举了它们的优缺点。
Independent variable of selection decides directly the advantage and disadvantage of the model which is the very important process of the establishment of the linear regression model.
线性回归模型的建立，一个很重要的过程就是自变元的选择，它直接决定着模型的优劣。
The enterprise has to adjust its strategy in time and make industry selection dynamically to set up sustained competitive advantage.
现代企业的生存环境瞬息万变，企业必须及时调整战略，动态地进行行业选择，建立起持续竞争优势。
Each method holds both advantage and disadvantage, the selection of methods depends on the demands of study, and the instruments used in study.
每一种纯化技术都有其各自的优势与不足，究竟采取哪种方式，取决于研究者对实验的要求以及研究者所处的环境条件。
Many brought along empty suitcases planning to take advantage of the vast selection and deep discounts.
趁着这次有大量的选择和大幅优惠的机会，许多人都带着空的手提箱前往。
Digital scroll multi-connected air-conditioning unit; Technical advantage; Design selection; Features of optimization scheme.
数码涡旋多联机组；技术优势；设计选型；优化方案特点。
The machinery selection, compacting depth, the range of appliance, the advantage and shortcoming, and the requirements of construction of the impact compacting is introduced.
简单介绍了冲击压实的机械选用、压实深度、适用范围、优缺点，阐述了施工要求。
The resources advantage is a key factor to be taken into consideration in the selection of regional strategic industry.
资源优势是地区战略产业选择的一个关键因素。
Again, differences between people and the opportunity for natural selection to take advantage of it have diminished.
人们之间的差异和自然选择利用差异的机会再次减少了。
The advantage of horizontal panel is the wide selection of axial sizes.
板的优势在于其选择轴向尺寸的范围极广。
Compared with conventional selection systems, whether or not theselection that utilizes the information of identified major loci is to better advantage?
与常规选择方法相比，利用主效基因位点信息的选择是否具有优势？
Then it designs the evaluation index, method and selection tactics of high and new technology superior enterprise based on cluster comprehensive advantage evaluation index.
结合集群综合优势评价指标，设计集群高新技术优势企业的评价指标和评价方法，给出其选择策略；
The advantage of fiber reinforced composites, materials selection, products varieties, examples and status of application for sports instruments are discussed.
主要从纤维增强复合材料应用在体育器材方面的优势，以及选材原则、产品品种、应用实例及现状等方面进行了阐述。
The paper analyzes the fact of current research about partner selection, and enumerates the advantage of gray relation selection comparing to the other arithmetic of partner selection.
分析目前伙伴选择研究的情况，并给出灰色关联选择相对于其它算法的优点。
Its printing technology, including selection, vulture version, and printing, all of which were in inimitable advantage of that period.
其印刷技术从选材、雕版、印刷，在当时都有无比的优越性。
Conclusion: Compare the mutagenesis method with other methods, it has the advantage of high speed and convenient. It's an important way of antibiotic selection.
结论：诱变育种和其它育种方法相比，具有速度快，方法简便等优点，是抗生素产生茵选育的一种重要方法。
Most of us have roughly the same number of offspring. Again, differences between people and the opportunity for natural selection to take advantage of it have diminished.
再一次，人与人之间的差异和利用差异进行自然选择的机会降低了。
In this paper feature selection methods and feature extraction methods are colligated. Their advantage and disadvantage are evaluated.
本文综述了已有的特征选择和特征抽取方法，评价了它们的优缺点和适用范围。
In this paper feature selection methods and feature extraction methods are colligated. Their advantage and disadvantage are evaluated.
本文综述了已有的特征选择和特征抽取方法，评价了它们的优缺点和适用范围。
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