treeingn.树枝状组织；植树动词tree的现在分词形式.treen.树；树状物Tree genetic improvement遗传改良tree-classes formation干级组成tree allocated processor树形网络分派的信息处理机tree-order restriction树序约束tree species arrangement树种配置tree variety disposition树种配置tree population dynamics树木种群动力学Trees hide the garage.树丛遮掩住车房tree species segregation树种分隔程度tree-by-tree mixture单株混交