vegetative layer
- vegetative layer的基本解释
-
-
[医] 滋养层, 内胚层
- 更多网络例句与vegetative layer相关的网络例句 [注：此内容来源于网络，仅供参考]
-
The ultrastructure characters of pollen grain in Brassica napus are:1There are vacuoles in cytoplasm but no starch grain in uniceelluar pollengrain.2The veget- ative nucleus of bicellular pollen grain is generally spheroidal;while the generative cell is spinde-shaped,with a big nucleus,thin layer of cytoplasmand few cell orgens,no cell wall.3In three-celled pollen grain the sperm cell is separated from the cytoplasm of vegetative cell by two layers of plasmic membrances.
Brassica napus的花粉粒，在不同发育时期超微结构的特征如下：1单胞花粉粒有一个球形的细胞核和明显的核仁，细胞质内出现液泡，缺少典型的淀粉粒。2双胞花粉粒的营养核多为球形。生殖细胞纺锤形，无细胞壁，细胞核比例大，细胞质呈薄层，细胞器少。3三胞花粉粒有一个裂片状的营养核和两个纺锤形的精细胞，精细胞无壁，以两层质膜与营养细胞的细胞质相隔。
-
Regions rich in vegetal products; vegetational cover; the decaying vegetative layer covering a forest floor.
盛产植物产品的地区；植被；腐烂的植物叶子覆盖了森林的地表。
-
The clone is English word clone transliterating, the clone source in Greek article klone, the original intention is refers to the seedling or the layer, reproduces the way cultivation plant by the vegetative reproduction or the nutrition, if the pole inserts and grafts.
克隆是英语单词clone的音译，clone源于希腊文klone，原意是指幼苗或嫩枝，以无性繁殖或营养繁殖的方式培育植物，如杆插和嫁接。