UPGMA is taken to calculate the genetic distance within and between populations. Systematic tree is constructed.
应用UPGMA法计算了种群内和种群间的遗传距离，并构建了系统树。
The genetic distance and phylogenetic tree between Chinese Hans and other populations were estimated by using DISPAN and PHYLIP software.
使用DISPAN软件及PHYLIP软件计算不同群体间遗传距离并绘制系统树。
With the data of control experiment, aboveground, underground and total competition (TC) indexes were made with its biomass of subject tree and its competitors and the distance between them.
植物间竞争是空间上一种连续过程，包括对地上光资源的竞争和对地下水养资源的竞争。
Article 10 the distance between an aerial power line and a tree shall meet the safety requirements.
第十条架空电力线路和树木之间距离应当符合安全要求。
Article 10 the distance between an aerial power line and a tree shall meet the safety requirements.
第十条架空电力线路和树木之间距离应当符合安全要求。
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