The historical development of the concepts of genealogy, phylogeny, monophyly and polyphyly is briefly reviewed.
历史地回顾了谱、统发育、、念的由来和发展。
The results indicate that when the plastic strain is smaller than 39 5%,plastic deformation has typicality of uniserial slipping.
晶连铸铝线材在小于395%时,其塑性具有明显的滑移特征,当大于395%时,才出现滑移特征。
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Second, scientists who have observed, Hans find that single lines are perfectly capable of getting enough food alone.
其次,科学家们观察,汉斯单系完全有能力单独获得足够食物。
In 1986, Yuan brought up the hybrid rice breeding strategy from the three-line hybrid rice strain to a two-line, and later on to a one-line variety.
1986年, 袁提出杂交水稻育种策略, 从三系杂交水稻品系到两系,再到单系品种。
And that path is represented by a single branch coming off of the tree, meaning that bryophytes are monophyletic — they share a single common ancestor and are all more closely related to each other than to any other plant group.
这条路径由棵树上分支来表示,这意味着苔藓植物是单系——它们有共同祖先,彼此之间关系比与任何其他植物群体关系都要密切。
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