释义 |
叶脉 yè mài 基本例句 venationnervurenervenervationveinleaf veincosta繁体葉脈并接,联结分支系统的不同部分结合后形成一个网络,如叶脉,血管,或河流及其支流The connection of separate parts of a branching system to form a network, as of leaf veins, blood vessels, or a river and its branches. 中脉中心的或主要的叶脉The central or principal vein of a leaf. |