tree stage

The four stages power amplifier is using tree type network for power combination. Four paralleled transistors are matched with load-pull impedance at the last stage for maxium output power.

功率放大器采用4级放大，树状功率合成网络，末级是4个晶体管并联并按负载牵引匹配，在单片上获得尽可能大的功率输出。

In natural forest, pioneer tree species are more susceptible to plant pathogens than climax species. Plant community in early succession stage is susceptible to plant pathogens compared to climax community.

在天然林中，先锋树种比顶极树种对病原菌更敏感，群落演替的早期阶段对病原菌比较敏感。

only if we build up an integrated tree-stage superviser system , we can choose a date to recover the national debt and future trade.

只要建立起完善的期货市场三级监管体系，就可以择期恢复国债期货交易。

in shrub-tree stage , the species diversity in tree layer was lower than that of shrub layer .

灌乔林过渡阶段群落乔木层物种多样性指数低，而灌木层多样性指数高。

all trees reaching the "young tree" stage are sold.

所有的树达到“年轻的树”阶段都卖出去了。

A multi-stage planning approach considering uncertainty is put forward based on improved minimum-cost spanning tree algorithm.

为了在规划过程中考虑负荷的不确定性,提出了一种基于改进最小生成树算法的多阶段不确定性规划方法.