叶轴是一个脊柱的花序的主轴线或花序。
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。
参考来源 - 速生用材型刺槐转OsDREBL基因的研究LjLOB1 and LjLOB3 co-express on the base of leaflets and probably set up the boundarybetween leaflets and rachis.
LjLOB1和LjLOB3在小叶基部表达可能参与小叶原基和叶轴的边界确立。
参考来源 - 百脉根复叶发育分子机制的初步研究·2,447,543篇论文数据，部分数据来源于NoteExpress
叶轴是复叶的主轴。
幼叶中层既可由亚边缘原始细胞或远轴层叶肉的第一个细胞单独产生，也可由它们二者共同产生。
The middle layer of laminae is brought about either by submarginal initials of by the first cell of the abaxial layer of mesophyll alone or by both of them .
在通往内地的管道中，设三叶以上的叶轮水流轴传动用作发电或取动力。
Pipeline leading to the Mainland, located above the impeller flow trefoil drive shaft for power generation or to take power .
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