叶脉的

By analysing the feature of ITS sequence of monocots with reticulate vein,the differentiation and variation characters of ITS sequences in the families,genera and species studied were discussed.

并通过分析单子叶网状叶脉植物和菝葜科部分种类的ITS序列特点，研究了该片段在科、属、种间存在的关系和变异特点。

In this paper, an approach based on artificial neural network learning is proposed to extract leaf venation.

为了充分利用图像的信息，本文提出了一种基于人工神经网络的叶脉提取方法。

Areoles without glochids; leaves broad and flat, pinnately nerved,± persistent; flowers solitary or in inflorescences, mostly stalked; ovary superior to inferior; seeds black, not arillate.

没有钩毛的小窠；叶宽和平，成羽状叶脉，多少宿存；在花序，多数柄里的花单生或；子房上位到下位；种子黑色，不具假种皮。 1 Pereskia 木麒麟属

Using X-ray microanalysis to determine the ion levels in a bulliform cell inepidermis, a mesophyll cell and a vascular bundle sheath cell of four reed ecotypes.

采用X射线微区分析技术测定了四种生态型芦苇的叶表皮泡状细胞、叶肉细胞和叶脉维管束鞘细胞离子的含量。

A: normal growth of blood vessels in chick chorioallantoic membrame; B: blood vessel net in a spoked wheel pattern; C: vasoproliferative response comparable to that induced by VEGF Original magnification:×6.1

对照组CAM血管形态呈自然生长状态下的叶脉状(图2A)， 40 μg/ml PMP组与对照组无差别，80 μg/ml PMP组及VEGF组在混合纤维素滤膜周围可见到不同程度放射状密集生长的血管网(图2B、2C)，而对照组及低

The placenta develops over a vein ending on the underside of a foliage leaf or an a specialized fertile leaf.

胎座在叶片背面的叶脉上方发育，或者位于特化的繁殖叶上。

Like most monocots, orchids generally have simple leaves with parallel veins, although some Vanilloideae have a reticulate venation.

就如同大部分的单子叶植物，兰科植物通常具有有平行脉的单叶，尽管一些香荚兰亚科植物具有网状叶脉。

Leaf blade ovate-elliptic, lateral nerves abaxially prominent, pale, at ca.

叶片卵形椭圆形，侧叶脉突出，浅，在约30去中脉的°；总苞片背面的被锈色绒毛。

Sazanami's features are the green veins on yellowish and lancerated spring leaves.

Sazanami的特色就是春天在淡黄色叶片上的绿色叶脉。

Sazanami's features are the green veins on yellowish and lancerated spring lea ves.

Sazanami的特色就是春天在淡黄色叶片上的绿色叶脉。

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。