叶脉

基本解释 (translations)

nervation  ·  nerve  ·  nervure  ·  venation

词组短语

leaf vein

与叶脉相关的网络例句 [注：此内容来源于网络，仅供参考]

In order to force the leaf color to change, we need to understand how leaves change color in the fall. In short, the temp drops and blockage in the veins is formed inside the leaves and it stops water from reaching every corner of the leaves. Then the chlorophyl disappears and they are replaced by those red and yellow pigments.

为了迫使叶子变色，我们就必需要了解它在秋天是如何变色的，简言之，温度下降阻碍叶片中的叶脉形成，因而停止了水份到达它的每一个角落，叶绿素跟著消失，而被红色和黄色的色素所取而代之。

Iron deficiency is characterized by chlorosis between veins in young leaves.

铁缺乏症的特点是嫩叶的叶脉之间萎黄。

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。

Leaf venation pinnate; floral units pedunculate, in a dichasium.

叶脉羽状；花单位有花序梗，在一二歧聚伞花序。 3 Lophostemon 红胶木属

The products of this brand are all fantastic handcraft with good looking and good price also, the 'nervation' vase is one of the top products of its gift series and it consists of different size, also different price.

这家的陶瓷器做工精美，外观和造型均非常突出，当然价格也非常不菲，叶脉花瓶便是其礼品系列的翘楚，该叶脉花瓶系列也分大小数种，价格也因而有一定差异，不多说，从图片大家便可以看出该花瓶的艺术魅力。

Considering other differences that in leaves of Podocarpus there are three resin ducts under vascular bundle of midrib, mesophyll cells are differentiated into palisade tissue and sponge tissue; in leaves of Nageia, there is only one resin duct under vascular bundle in each vein and no obvious differentiation in mesophyll cells, palisade tissue can be found on both sides, and sclereids can also be found in mesophyll tissue.

结合罗汉松属植物主脉维管束下面有3个树脂道，叶肉分化为栅栏组织和海绵组织，而竹柏属植物每个叶脉维管束下面有1个树脂道，叶肉分化不明显，两面都有栅栏组织，叶肉中还具有大量石细胞等特征，认为罗汉松属和竹柏属在叶脉、叶形态和结构方面存在明显差异，2个属分开是比较合理的。

Leaves the middle of a vein, it is light yellow, from the tip-up, by rough vein gradually thinning.

叶子的中间有一条叶脉，是浅黄色的，从叶尖往上，叶脉逐渐由粗变细。

Observations on the dichotomous leaf venation of Circaeaster agrestis found no intermediate forms of the fusion of vascular bundles between the two completely fused commis-sural veins of anastomoses and the two separate approximate veins, but found different degrees of the vestige of commissural veins .

在星叶草叶二叉分枝脉序中，网结脉中2条完全汇合叶脉与靠近脉中完全分离叶脉间未发现任何形式的维管束汇合的中间类型，相反观察到了网结脉中不同程度的连接脉退化的痕迹，因此网结脉不可能由靠近脉形成；盲脉的出现与齿的退化、网结脉中连接脉的间断及非网结脉由分枝处间断等相关；上述事实表明星叶草叶的二叉分枝脉序应为一减化性状。

The most sensitive part to K ftertilization was in the mid-upper midrib at low positions. The relative value of K content, expressed by Vm/Im, in the midrib between 5th and 1st leaves from top, was used for evaluating the K nutrient status of banana. The sampling part was in the connective zone between midrib and blade.

明确了采用自顶向下计第5叶和第1叶叶脉含钾的比值，来评价香蕉的钾素营养状况；叶脉采样的代表部位为叶片与叶主脉的连接带和采用混合样分析的可行性。

Green leaves, like a pin stripes main vein from the leaves has been grown out of the final Linked leaves vein became a long Juanxu, Juanxu the bottom of one of the 10-centimetre-long "bottle", whatever the field through the lips, then there is a bottle phenomenon, This is the lid -- like bottles favorite insect leaf cages, fishing worms Capsule cones shaped, slightly lower expansion, and some like pig cage, so that pitcher plants.

嫩绿的叶子上，一根大头针般粗细的主叶脉从叶片上一直生长出来，最后连着叶片的叶脉成了一根长长的卷须，卷须的底部系着一只十余厘米长的&瓶子&，瓶口的唇向外翻，瓶子上方还有一片小叶，就像瓶子的盖子―――这就是爱吃虫子的叶笼了，捕虫囊圆筒形，下半部稍膨大，有些像猪笼，故称猪笼草。

与叶脉相关的网络解释 [注：此内容来源于网络，仅供参考]

Hoya finlaysonii：斐赖迅球兰 叶脉明显

53, Hoya flavida淡黄球兰---------135 | 54, Hoya finlaysonii斐赖迅球兰 叶脉明显---------120 | 55, Hoya finlaysonii斐赖迅球兰 叶脉斑点---------130

Hoya finlaysonii：斐赖迅球兰 叶脉斑点

54, Hoya finlaysonii斐赖迅球兰 叶脉明显---------120 | 55, Hoya finlaysonii斐赖迅球兰 叶脉斑点---------130 | 56, Hoya glabra光叶球兰---------180

midrib of leaf：叶脉

146 stele 中柱 | 147 midrib of leaf 叶脉 | 148 stoma 气孔

nervure：叶脉

nervous 神经紧张的 | nervure 叶脉 | nervy 有勇气的

netted venation：网状叶脉

"净生产率","net production rate" | "网状叶脉","netted venation" | "织网用纤维","netting fibers"

vein：叶脉

通常,叶片的内部结构分为表皮、叶肉(mesophyll)和叶脉(vein)三部分(图6-11,6-12). 表皮来源于原表皮,覆盖着整个叶的表面,有上表皮和下表皮之分,近轴面的是上表皮,远轴面为下表皮. 大多数植物叶的表皮由一层细胞构成,

veined：有脉纹的/有叶脉的/有木纹的

veinal /静脉/ | veined /有脉纹的/有叶脉的/有木纹的/ | veinite /脉状混合岩/

veining veining：矿脉,叶脉的排列vein静脉,叶脉

veil veil面纱,v.掩饰 | veining veining矿脉,叶脉的排列vein静脉,叶脉 | velocity velocity速度

veinlet：细叶脉;细脉

叶脉(叶片中及花瓣中的维管组织) vein | 细叶脉;细脉 veinlet | 有脉的 veiny

venation：叶脉序;翅脉序

vena cava 腔静脉,大静脉 | venation 叶脉序;翅脉序 | venereal disease 性病