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
- 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 - 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。 - 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。 - 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。 - Total amount of choline and betaine in the anther was significantly higher than that in the glume and rachis.
花药中的胆碱类物质含量显著高于颖壳和穗轴中的含量。 - 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。 - 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 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； - Comparative Anatomic Studies on Rachis of Eight Species of Cycads
八种苏铁植物叶轴的比较解剖研究 - 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；