?平行脉
2.平行脉(parallel veins) 侧脉与中脉平行达叶尖或自 中脉分出走向叶缘而没有明显的小脉连结,绝大多数单子叶 植物的脉序属此种类型。
具平行脉
直出平行脉
平行四边形机构
It is a cancer of the lymphatic system, which is a part of the immune system that consists of a series of ducts or tubes that parallel the arteries and veins throughout the body.
CNN: What is Hodgkin lymphoma's effect on the lymphatic system?
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。