Natural selection will preserve sequences with vital functions, but the rest of the genome will change because of drift.
自然选择将保存重要功能的基因序列，但是其他基因会因为漂变而被改变。
“Natural selection is shaping the Y and keeping it vital to a degree that is really at odds with the idea of the last 50 years of a rotting Y chromosome, ” Dr. Page said.
佩奇博士说：“自然选择塑造了Y染色体，50年来，我们为Y染色体的退化争论不休，自然选择论更是加剧了这种争论。
Vital meaning of materials gained attentions in cutting tools for casting iron and influential factors for tool selection in cutting casting iron are introduced.
介绍了选择铸铁切削用刀具需考虑的因素，可用于不同牌号铸铁的切削用刀具新材料有硬质合金刀具、陶瓷刀具、金属陶瓷刀具和超硬刀具。
The sputtering performance of materials induced by fast neutrons is of vital importance to the selection of the materials for fission and fusion reactors.
材料的快中子溅射性能直接关系到裂变和聚变反应堆材料的选择。
The beneficiaries for the houses are chosen through a thorough selection process, whereby the community is a vital part of the decision making.
住房的受益人是通过一个选择过程来指定的，对于社区来说这是一个非常重要的决策过程。
Obviously, the right selection for intraocular lens is a vital element to deciding whether or not the cataract operation can be implemented successfully.
选择一种合适的人工晶体对白内障复明手术有着十分重要的意义。
It showed that if we wanted to solve the current problems as staff shortage, low quality, it was of vital importance to enforce the employment, the selection and the training of the volunteers.
加强对志愿者的招募、选拔和培训是解决现阶段我国体育社团志愿者人员少、素质低的关键。
The engineering geology characteristics of the slope rock body are vital important for the selection of open-air mining slope Angle and the stability of the slope.
边坡岩体的工程地质特性对露天开采边坡角的选定及边坡的稳定性至关重要。
Virtual force models have widely used in coverage algorithms of node deployment of wireless sensor networks, so the selection of models is of vital important.
虚拟力模型在传感器节点的覆盖算法中应用很广泛，而力模型的选择是覆盖算法中的一个重要问题。
Furthermore, an optimal selection method is designed to select an optimal aim point by calculating the hitting vital index for all the preestablished aim points and searching for the maximum index.
设计了通过计算所有拟瞄准点的命中要害指数，搜索其中的最大值，选择具有最大命中要害指数的瞄准点为最佳瞄准点的最优化方法。
Therefore, I wish it would be more and more vital to become an indispensable selection by poets and historians.
因此，我祝愿它越来越虎虎生威，成为诗人和史家不得不读的选本。
Therefore, I wish it would be more and more vital to become an indispensable selection by poets and historians.
因此，我祝愿它越来越虎虎生威，成为诗人和史家不得不读的选本。
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