pollen grain的意思

pollen grain中文翻譯：

[植]花粉粒

相似詞語短語

pollen grains───花粉粒（pollengrain的復數）

bullet train───動車

mole drain───地下排水溝，鼠道式排水溝

power train───傳動系；動力傳動系；動力傳動機構

to engrain───to engrain

Pullman train───Pullman train

swollen organ───swollen organ

pollen analysis───花粉分析

polling station───（英）投票站

雙語使用場景

mature pollen grain is 2-celled.───成熟花粉為2 -細胞型。

The pumpkin pollen grain in the middle is0.2mm and just about visible to the naked eye───中間的南瓜花粉有0.2毫米，肉眼剛剛能看見。

We can see spinous pollen grain in the fruit by microscope.───顯微觀察可見,果中的刺球狀花粉粒最為顯著.

mature pollen grain accompary with proteins.───成熟花粉粒中多糖和蛋白質并存。

It had snow - melting - like veins on the surface of pollen grain with several hollows.───萌發孔溝多為3對(頂分體3條,側分體各對應1條),以四面體幾何中軸為中心,中心對稱分布于四面體的3個側面.

英語使用場景

We can see spinous pollen grain in the fruit by microscope.

Pollen grain germination and tube growth were investigated in intergeneric crosses between Brassica species and O.

In seed plants it is the generative cell in the pollen grain, which divides in the pollen tube to produce two sperm cells.

In many gymnosperms the nuclei divide within the pollen grain to produce a small number of cells (2-40 depending on the group )representing the male prothallus .

After uninuclear pollen grain forms, the growing speed of the pollen grain of oblong anthers and of globose anthers roughlg corresponds to each other.

Title Pollen grain morphology in the Ericaceae.

The characteristics of pollen grain are related with the distribution of Gnetum and classified system of subgenus.

The probability of any air-borne pollen grain impacting a female strobilus is in any case very small.

The mature pollen grain belongs to two cells: 1 vegetative cell and 1 germ cell.