rachis

英

美

n.  脊柱；分脊；花序轴，叶轴；羽轴

医学

英英释义

noun

• the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
  1. the fall broke his back
  Synonym:spinal columnvertebral columnspinebackboneback
• axis of a compound leaf or compound inflorescence

双语例句

• 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；
• In addition, the developments of all traits about floral axis rachis were evidently influenced by environment.
  此外，环境显著影响花序轴各性状的发育。
• 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。
• 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。
• Lumbar Di is changed and Di vertebra waist is changed is congenital rachis deformation.
  腰椎骶化和骶椎腰化都是先天性脊柱畸形。
• Effect of Spikelets upon Secondary Rachis Branch on Yield of Rice
  水稻二次枝梗颖花的灌浆程度对产量的影响
• Moreover, it mainly resulted in shortened internode under the rachis internode, with forming good plant shape, and increasing the number of ear bearing tiller, but decreasing the per ear grain number.
  而且主要是缩短穗下节间以下的节间，对穗下节间无明显影响，形成良好的株型，并可增加成穗数，但穗粒数有所减少。
• A low-growing, weedy grass ( Paspalum distichum) with spikelets arranged in two rows along the rachis. any grass of the genus Chloris; occurs in short grassland especially on waste ground or poor soils.
  两耳草一种小穗沿叶轴排成两行的低矮蔓生草（两耳草雀稗属）虎尾草属的任何一种草；出现在矮草原尤其在荒原或土壤贫瘠地区。
• The results indicated that crude choline and betaine and their water extract from the anthers, glume and rachis showed a marked stimulating effect on conidium germination, germ tube extension and hypha growth of Fusarium graminearum.
  结果表明，花药、颖壳和穗轴的抽提物及胆碱对赤霉菌分生孢子萌发、芽管伸长和菌丝生长有明显刺激作用。
• The results showed that there was notable difference between rates of spikelets on secondary rachis branch to total spikelets of different types of rice varieties. Varieties with heavy spikes had more spikelets on secondary rachis branch, accounting for over 70% of total spikelets.
  试验结果表明：不同类型水稻品种的二次颖花占总颖花的比率有明显差异，穗重型品种二次颖花多，占总颖花的70%以上；