叶脉的

The main differences are the distribution of the stomatal density and the cystolith cells in the upper epidermis and the distribution of the crystals in the mesophyll.

结果表明，品种间在表皮、叶肉和叶脉上的构造基本相似；主要差别在于气孔密度、上表皮细胞中的钟乳体细胞数目及叶肉中晶体的分布。

Internal organization shows a wide photosynthetic mesophyll layer permeated by veins and bounded by an epidermis.

内部结构显示，叶脉穿过进行光合作用的叶肉层，叶肉细胞的外侧为扁平的表皮细胞。

Extending beyond the apex of a leaf, as a midrib or vein.

延伸的伸出叶的顶端的，如中脉或叶脉

The results are as follows:(1) The morphological investigation indicated that the nectaries werelacked on the main nervation, calyx and bract of cotton line 97014 comparedwith TM-1. Alveolate hollow was absent at main nervation of the mature leaf.Results of cytological analysis showed that 97014 lacked nectariferous structure.Where nectary inserted were parenchyma cells, cupped structure and brownnectariferous substance on the lower epidermis were not found.

主要研究结果如下：(1)以棉花无蜜腺品种97014与有蜜腺棉花遗传标准系TM-1为材料，进行形态学比较研究，结果表明棉花无蜜腺品种97014叶片中脉、花萼和苞叶上都缺少蜜腺，成熟叶片叶脉、花萼和苞叶上均无蜂窝状凹陷；组织与细胞切片观察发现，97014缺少蜜腺组织结构，在蜜腺着生处为排列整齐的薄壁细胞，且在下表皮看不到凹陷的组织结构和褐色的蜜腺分泌物。

Stem leaves petiolate, petioles ca. 10 cm; sheaths broadly ovate, 2.5–4 cm, purple-red adaxially, densely white-setose abaxially; blades triangular-oblong, 10–15 × 5–7 cm, 3-pinnate; pinnae 5–7 pairs, only basal pinnae short-petiolulate; ultimate segments obovate or oblanceolate, 3–5 × 2–3 mm, setose along nerves abaxially, entire or 2–3 toothed, cuspidate at apex.

茎生叶具叶柄，叶柄约厘米；鞘宽卵形，正面2.5 -4厘米，紫红色，密被白色具刚毛；叶片三角形的长圆形， 10-15 * 5-7 厘米，3回羽状；羽片5-7 对，只是基本的羽片短的小叶柄；末回裂片倒卵形或倒披针形， 3-5 * 2-3 毫米，具刚毛沿着叶脉背面，全缘或齿状，骤尖在先端。

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。

A rib or a riblike part,such as the midrib of a leaf or a thicken ed 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

Fruiting pedicels divaricate or reflexed; ultimate leaf veins ending in apiculate callosities; fruit usually linear, torulose, not appressed to rachis, terete.

果梗极叉开的或反折；末级的叶脉结果是具细尖的胼胝体；果通常线形，近念珠状，并非贴伏于轴，圆柱状。

Leonardi ants studied in Thailand's Khao Chong Wildlife Sanctuary had chomped down on the underside of a leaf, and 98 percent had landed on a vein.

leonardi 蚂蚁都紧紧的叮在一个叶子的下边，98%的蚂蚁处于叶脉处。

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。