基本释义:

叶脉系

网络释义

1)leaf venation,叶脉系

2)veins at different levels,叶脉系统

3)leaf vein,叶脉

4)vein,叶脉

5)venation,叶脉

6)nerve,叶脉

用法和例句

The leaf vein was proved to have high similarity with the small-scale wing in mechanical performance.

指出了仿生相似分析内容和步骤,并对生物骨架与小型梁肋机翼结构进行了模糊相似评价,表明叶脉承力性能与小型梁肌机翼具有高的相似度;针对机翼结构设计要求,借鉴叶脉结构特征,设计了仿生型机翼结构。

The development of vein in Zea mays L.;

玉米(Zea mays L.)叶脉发育的研究

By analyzing the soybean vein, this paper proposed a L-system to simulate it.

为此,针对网状叶脉的特征,以大豆为例,研究了其自相似性。

Both network structures of the filaments and veins were found to be fully consistent, suggesting that the filaments are the composing parts of the veins.

通过观察和比较，可见杜仲叶中的胶丝网络结构与叶脉的网络结构完全一致，证明胶丝是叶脉的组成部分。

The venation and leaf epidermis of 17 species and 1 variety of Piper Linn.

　研究了华南地区胡椒属植物17种和1个变种的叶脉和叶表皮结构,根据叶片宏观结构编制了分种检索表,同时对脉序级的划分、叶片宏观结构对种的鉴定作用及某些种的归并问题作了初步的探讨。

Moreover,the venations of t.

结果表明,转基因烟草植株的叶片形态和叶脉发生了多种变化,包括叶片对称性丧失、出现裂片、皱缩、异位茎、杯状叶片、瘤状结构、叶脉脉序紊乱等。

nitidum,the variation of leaflet morphological characters of them was analyzed,the micro-morphology of the leaflet epidermis and nerve was observed by SEM and AM.

为更好地分类和鉴定两面针原变种、毛两面针变种以及原变种的3个类型,对两面针2个变种及原变种3个类型的小叶形态特征进行了观察,并利用扫描电镜和解剖镜对叶片表皮和叶脉进行了显微观察和微形态研究。

The quality or condition of being venous or venose.

具脉，多叶脉具有叶脉或多叶脉的性质或状态

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

（叶脉）延伸的伸出叶的顶端的，如中脉或叶脉

Having veins.Used of leaves.

具脉的有叶脉的。用于修饰树叶

Vein One of the vascular bundles in a leaf. The pattern in which the veins are arranged in a leaf is called the VENATION.

叶脉：叶片中的维管束结构。在叶片中，所有叶脉排列的方式称脉络。

The veins of such a system considered as a group.

翅脉，叶脉作为整体的该系统的脉

There are two kinds of venation, parallel and net.

叶脉有两种：平行脉和网状脉。

Having veins or showing veinlike markings.

叶脉的、静脉的、纹理的有静脉或叶脉等的；显示出静脉或叶脉状标识的

Venation The distribution of veins (vascular strands) in a leaf.

脉序：是叶片中各叶脉(维管束)的排列分布状态。

Dark green, quilted girl foliage. Standard.

深绿色白脉叶，叶脉向上气状突起。标准型。

Medium-dark green, heart-shaped, quilted, glossy/ maroon back. Large.

中到深绿色叶，心形状的叶，叶脉鼓起，叶面光滑，咖啡色的叶背。大型。

Medium green, quilted, glossy, wavy, serrated/ red back. Large.

中绿色波浪叶，叶面光滑，叶脉向上气状突起，锯齿叶缘，红色叶背。大型。

Dark green, pointed, quilted, smooth, prominent veins, serrated/ occasional red back, petiole.

深绿色尖型叶，叶脉向上气状突起，叶面平坦，脉纹明显，锯齿叶缘，不时有红色的叶背，叶柄。

Dark green, quilted. Small standard.

深绿色叶，叶脉向上气状突起。小标准型。

The central or principal vein of a leaf.

中脉中心的或主要的叶脉

Dark green, pointed, quilted, scalloped. Standard.

深绿色叶，尖尖的贝壳状叶，叶脉往上突起。标准型。

Dark green, ovate, quilted/ red back. Miniature.

深绿色叶，叶脉向上气状突起，红色叶背。迷你型。

Dark green, quilted/ red back. Large.

深绿色叶，叶脉向上气状突起，红色叶背。大型。

Dark green, quilted, glossy/ maroon back. Large.

深绿色光滑叶，叶脉向上气状突起，茶色叶背。大型。