叶脉

Inflorescences gray lanuginose, leaf veins 18–20 pairs; petiole 2.5–4 cm.

花序灰色被绒毛，叶脉对；叶柄2.5-4 厘米 14 P。 lanuginosa 绵毛石楠

The leaf shape indexes of transgenic and control seedlings increase lightly when the IAA treatment concentrations are in two regions of 0~0.01mmolL^(-1) and 1.0~10.0mmolL^(-1) respectively, while LSIs decrease when IAA concentrations are between 0.01mmolL^(-1) and 1.0mmolL^(-1) this implies the depression effect on the growth in longitudinal is greater than that in transversal for both transgenic and control mesophyllous cells.

激素浓度在0~0.01mmolL^(-1)和1.0~10.0mmolL^(-1)两个区域时，转化株和非转化株的叶形指数略有增加，而在0.01~1.0mmolL^(-1)范围内，两者的叶形指数均呈下降趋势，表明IAA在此浓度范围内，叶肉细胞沿主叶脉方向的纵向生长受到的抑制强于横向生长所受到的抑制。

Any of various chiefly tropical evergreen trees, shrubs, or woody vines of the family Palmae, characteristically having unbranched trunks with a crown of large pinnate or palmate leaves having conspicuous parallel venation.

棕榈科植物棕榈科的各种主要的热带常绿树、灌木或木质藤本植物，特点为有无分支的树干，其顶端集生羽状或掌状的树叶，并带有明显的平行叶脉

Leaves 1 to few times palmately or subpinnately divided, palmately nerved; pollen grains not spinulose.

叶1到很少回掌状或近羽状全裂的，掌状叶脉；花粉粒不具微刺。

Crown variegated dark green, gold and tan, quilted, pebbled, glossy.

深绿色，金黄色，黄褐色组合成的皇冠状圆形斑叶，叶脉向上气状突起，叶面光滑。

Leaves basal and cauline, alternate, rarely opposite or whorled, simple or variously compound, palmately nerved, rarely penninerved, with or without stipules.

叶基生和茎生，互生，很少对生或者轮生，单叶或者复叶，掌状叶脉，很少羽状脉，有或无托叶。

An observation and analysis of series of characteristics coming from sixteen species belonging to five genera of Polypodiaceae subfam.Polypodioideae were undertaken in order to unravel the phylogenetic relationships within this group.

对水龙骨科水龙骨亚科5属16种植物的孢子形态、叶表皮结构、叶柄和根状茎的横切、根状茎上的鳞片以及叶脉特征进行了详细的观察和分析，探讨了该亚科植物的系统位置和亲缘关系。

Calyx and pedicel sparsely puberulent; annual branches, both leaf surfaces, or at least leaf veins pubescent

花萼和花梗疏生微柔毛；一年生枝，两个叶表面，或至少叶脉短柔毛 47

A rib or a riblike part, such as the midrib of a leaf or a thickened anterior vein or margin of an insect's wing.

肋骨，叶脉肋骨或肋骨状部分，例如叶子的中脉或昆虫翼的较厚的前部线或边

"Costa:a rib or a riblike part, such as the midrib of a leaf or a thickened anterior vein or margin of an insect 's wing."

肋骨，叶脉：肋骨或肋骨状部分，例如叶子的中脉或昆虫翼的较厚的前部线或边。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。