Complex structures and behaviour such as eyes and language are undoubtedly the product of natural selection.
复杂的结构和行为，例如眼睛和语言毋庸置疑是自然选择的产物。
As long as the forces of selection stay constant, natural selection canpush evolution in one direction and produce sophisticated structures insurprisingly short times.
只要选择的影响力存在，自然选择就能把进化向一个方向推进，在出乎意料的短时间内产生复杂的结构。
These abnormal limbsare not functional, but their existence demonstrates that geneticmistakes can produce complex structures, which natural selection canthen test for possible uses.
这样长出来的肢体没有实际作用，但它能够证实，基因变异能产生复杂的结构，自然选择能够测试这些结构的可能用途。
Worse still, there isn't the slightest reason to suppose that free-riding exhausts the kinds of exceptions to natural selection that endogenous structures can produce.
更糟的是，没有丝毫的理由认为搭便车可以穷尽所有自然选择的反例(内在结构产生的)。
To identification the model structures of helicopter efficiently, a new robust criterion for model structure selection is developed.
提出了一砷能有效地对直升机模型进行辨识的鲁棒选择模型的新方法。
The active voice and passive voice have different sentence structures, active voice in the discourse in the selection or choosing the passive voice will inevitably bring different results.
主动语态和被动语态具有不同的句式结构，在语篇中选择主动语态还是选择被动语态必然会带来不同的结果。
The results show that the proper selection of modes of welded joints and welding technologies can double improve the fatigue life of structures.
结果表明，合理选择焊接接头形式和焊接工艺可以成倍地提高结构的疲劳寿命。
The selection of spices, manufacture of spice matrix , technology of blending spinning, structures and properties of the fiber are discussed.
研究了香料的选择、香母粒的制作、共混纺丝工艺及芳香聚丙烯的结构和性能。
Lasting repairs of deteriorated concrete structures depend on careful selection of materials and methods suitable for the service and application conditions.
破损的混凝土结构被修补后，其耐用性取决于维修材料和维修方法的精心选择，这些材料和方法应适宜于其使用条件。
As long as the forces of selection stay constant, natural selection can push evolution in one direction and produce sophisticated structures in surprisingly short times.
只要选择的力量保持稳定，天择就能推动演化，朝一个方向前进，在很短时间内就能制造复杂的结构。
Reasonable selection of pavement structure is important in pavement design, which should be based on correct assessment of the structures.
路面设计中，合理选择路面结构是建立在对路面类型进行正确评估的基础之上。
By means of the structure decomposed method, its calculation is simple and data selection is flexible so that a complex structure can be formed from those familiar structures.
文中详细地讨论了刚度变量法中将结构分解设计的方法，其计算简捷，选值灵活，可由熟悉的结构组成复杂结构。
It was expected that this paper might guide the selection of thick steel plate and the prevention of lamellar tearing in steel structures.
本文对厚板钢材的选材及防止钢结构厚板的层状撕裂具有一定的指导意义。
And content in the next we introduce the basic knowledge of OTFTs, including common device structures, OTFTs works, material selection and preparation, and crafts.
并在接下来的内容里介绍了OTFT的基本知识，包括常见的器件结构、OTFT的工作原理、材料选择和制备工艺等。
Results are significant to reasonable design and selection of large step pump stations, structures and functions of pump unit equipments.
成果对大型梯级泵站形式和机组设备结构功能的合理设计选型有重大意义。
Students should understand the basic knowledge on engineering planning, selection of structures, construction machinery and building electric.
了解有关工程规划、结构选型、建筑机械、建筑电气的基本知识。
Thirdly, the article argues the SORT organizational design methods, respectively from organization structures, procedures, scales, personnel selection and mechanism.
再次，从组织结构、程序、规模、人员选拔、机制等方面分析了自组织团队如何进行组织设计。
Treatment of materials properties selection, mechanical characterization, and processing in design of load-bearing and environment-compatible structures are covered.
涵盖材料特性、机械性质、大量生产过程的设计和环境整合的论述。
Treatment of materials properties selection, mechanical characterization, and processing in design of load-bearing and environment-compatible structures are covered.
涵盖材料特性、机械性质、大量生产过程的设计和环境整合的论述。
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