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

• Acrylic printed fleecy suit Inflorescence paniculate, rachis tawny tomentose; female flowers borne on basal part of the inflorescence.
  腈纶珠光网眼泡沫印花套装花序圆锥状；花序轴被灰黄色短绵毛；雌花著生于花序轴下部。
• 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；
• The setting ratio of spikelets on secondary rachis branch was more subject to climate and management.
  二次颖花的成粒率受气候及管理水平影响较大；
• 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。
• Likewise, a plumulaceous tuft of barbs evolved before the pennaceous feather with a rachis because the rachis is formed by the fusion of barb ridges.
  同样的，绒羽的羽枝簇比拥有羽轴的正羽更早演化出来，因为羽轴是由羽枝脊接合而成。
• 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。
• Its anthotaxy is spica, and amphimixis flowers is serried inserted on the thick rachis.
  穗状花序，两性花密集着生于粗大的花轴上。
• 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 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；
• 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。