查询词典 polypodiaceous

Recently polypod ferns have been demonstrated to undergo diversifications in the Cretaceous after the rise of angiosperms. To further test this proposal, an adaptive evolutionary analysis was performed on the rbeL gene sequences of Polypodiaceous ferns under models allowing w (nonsynonymous/synonymous rate ratio) to vary among sites.

为验证蕨类植物在白垩纪适应被子植物兴起而发生分化的观点，本研究以水龙骨科附生蕨类为对象，利用位点间可变ω（非同义替换率d和同义替换率d的比值）模型对其rbcL基因的适应性进化进行分析。

This research consolidated that evolutionary models using w as an indicator of selective pressure provide valuable approaches for analyzing the adaption of protein-encoding sequences. Moreover, it also indicated that Polypodiaceous ferns responded to the terrestrial ecosystem changes initiated by angiosperms through molecular adaption of functional genes such as rbeL.

这些结果一方面显示了基于ω比值检验DNA编码序列分子适应的有效性，另一方面也提示水龙骨类可借助rbcL等功能基因的适应性进化，应对白垩纪被子植物引发的陆地生态系统改变。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。