多重有向根树
基于1个网页-相关网页
multiple directed rooted trees
多有向树根
以上为机器翻译结果，长、整句建议使用 人工翻译 。
It is proved that the R-rotation graph of a elementary coronoid system is a multiple directed rooted tree containing at least 2 trees.
如果冠状系统是基本的，已经证明其R -旋转图至少包含2棵有向根树。
youdao
应用推荐
模块上移
模块下移
不移动