| 单词 | 中脉 |
| 释义 | 〔costa〕A rib or a riblike part, such as the midrib of a leaf or a thickened anterior vein or margin of an insect's wing.肋骨，叶脉：肋骨或肋骨状部分，例如叶子的中脉或昆虫翼的较厚的前部线或边〔unicostate〕Having a single main costa, rib, or riblike part:（叶）中脉显明的：有单个主中脉、主脉或主脉样部分的：〔midrib〕The central or principal vein of a leaf.中脉：中心的或主要的叶脉〔percurrent〕Of or relating to a midrib that extends throughout the entire length of a leaf.及顶的：属于或关于伸到叶顶的叶子中脉的〔pinnatisect〕Divided pinnately nearly to the midrib. Used of certain leaves.羽状全裂的：接近中脉的羽状分裂的。用来指某种叶子 |
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