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- polymeric longitudinal vein 多出纵脉
- A main longitudinal vein in a leaf. 叶片上主要的纵脉。
- Sori borne along the longitudinal veins and protected by the reflexed edges of the ultimate segments of pinnules. 孢子囊沿能育叶裂片的纵脉两侧著生，并为裂片反卷的边缘所覆盖。
- There is a vein of melancholy in his character. 他的性格中有少许忧郁的气质。
- longitudinal veins dark green, cohering at apex; 纵向脉深绿色，紧凑的在先端；
- She helps her mother when she is in the vein. 她在心情好的时候会帮她妈妈的忙。
- A vein of gold was seen cropping out. 可以看见一条金矿矿脉露出地面。
- A longitudinal cut from the trunk of a tree. 料板，板皮从树干上纵切下的一块木材
- A polymer of two or more different monomers. 共聚物一种由两种或多种不同单体构成的聚合物
- The central or principal vein of a leaf. 中脉中心的或主要的叶脉
- He had no comedy vein in his youth. 他年轻时没有演喜剧的才干。
- A rich mine, vein, or pocket of ore. 富矿脉富矿坑、脉、囊
- longitudinal veins violet, inconspicuous, cohering at apex; 纵向脉紫色，不明显，紧凑的在先端；
- She writes humorous songs when she is in the right vein. 她在心情不好的时候写诙谐的歌曲。
- A molecule that can combine with others to form a polymer. 单体可以与其他分子结合形成聚合物的分子
- The longitudinal girder forms part of the parapets. 纵梁成为栏杆的一部分。
- fourth longitudinal vein 第四纵脉,中脉
- A short polymeric chain of two to ten nucleotides. 低（聚）核苷酸由两个到十个核苷酸构成的一条短聚体链
- third longitudinal vein 第三纵脉
- The insulated polymeric film was proved to be polymer arylether by time-resolved rapid scan infrared spectroscopy. 利用超微电极技术研究了丹皮酚电化学氧化的动力学过程，并用时间分辨快速扫描现场红外光谱电化学证明了电极表面的聚合物膜是芳醚类聚合物。
