rachis
英
美
n. 脊柱；分脊；花序轴，叶轴；羽轴
英英释义
noun
- the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
- the fall broke his back
- axis of a compound leaf or compound inflorescence
双语例句
- The study discovered that there are assimilating tissue which like the shape of palisade tissue in adaxial surface of rachis in all species of Cycas.
研究还发现苏铁科种类的叶轴的近轴面均像叶片那样具有栅栏组织状同化组织存在。 - Two QTL controlling primary rachis branches were identified and they were co located with 2 of the 3 QTL for vascular bundles respectively.
2个控制一次枝梗数的QTL效应较小，但分别与控制穗颈维管束数的2个QTL同位。 - The rachis of these cycads had structure characteristic of xerophytes, i.e., thicker cuticular membrane, developed mechanical tissue, the more secretion, crystal and secretory canal and more number of vascular bundles etc.
苏铁类植物叶轴具有旱生植物的解剖结构特征：角质层较厚、表皮细胞壁厚、机械组织发达、晶体较多、分泌道和维管束数目较多等结构特征。 - The activity of catalase in rachis branches of ratooning rice of HMST and LST varieties improved with declining stubble height, whereas a contrary trend was observed for HST ones.
中高桩与低桩再生型品种再生稻枝梗过氧化氢酶活性随留桩高度下降而增强，而高桩再生型品种表现相反； - Small early-flowering buttercup with shiny yellow flowers of western North America. Inflorescence paniculate, rachis tawny tomentose; female flowers borne on basal part of the inflorescence.
北美西部的一种小形的早花毛茛，花黄色、有光泽。花序圆锥状；花序轴被灰黄色短绵毛；雌花著生于花序轴下部。 - Effect of Water Deficit on Vascular Bundle System of Rachis in Wheat
水分亏缺对小麦抽穗期穗轴维管束系统的影响 - Relationship between Vascular Bundle System of Rachis and Rachilla and Ear Productivity in Wheat
小麦穗轴和小穗轴维管束系统及与穗部生产力关系的研究 - Via the study for the regeneration of the folioles and rachis of the compound leaf, rachis is selected for the genetic transformation.
通过对刺槐复叶中小叶和叶轴两部分的再生试验，确定刺槐的叶轴作为本试验进行遗传转化的受体材料。 - Character and re-inoculation experiment indicated that the strains were Bradyrhizobium sp. ( A rachis), which provide a base for the coming research of peanut's nodulation gene.
所得菌株经理化性质和回接试验鉴定为慢生根瘤菌，从而为接着的花生根瘤菌及其结瘤基因的研究提供了基础。 - It showed that the vascular bundle system of rachis in wheat changed apparently under water deficit.
表明水分亏缺显著改变了小麦穗轴维管束系统的显微解剖结构。