主干 的英文翻译

trunk

backbone

主干 的中文句子和英文句子

树一种多年生木质植物，生有一个主干且常有一个很明显的树冠

A perennial woody plant having a main trunk and usually a distinct crown.


主动脉系统血管的主干道，将血液由心脏左侧输送到除肺部以外的所有肢体及器官的动脉里

The main trunk of the systemic arteries, carrying blood from the left side of the heart to the arteries of all limbs and organs except the lungs.