tapetum怎么读，tapetum什么意思，tapetum短语和例句

1.Tapetum (pl. tapeta) A food-rich layer surrounding the spore mother cells in the anthers of vascular plants.

绒毡层：维管植物花粉囊内包围孢子母细胞的富含营养物质的一层结构。

2.The mature embryo sac is surrounded by en lothelium tapetum. It is composed or an egg apparatus, one central cell with secondary nucleus, and 1—6 antipodal cells.

成熟胚囊被珠被绒毡县包围，由卵器、具次生核的中央细胞以及数目为1至6个反足细胞组成。

3.The specialist suggests that the pregnant woman eats 1-2 fishes at least within a week to absorb ripe DHA and satisfies the nasciturus' tapetum development demand.

专家建议，孕妇在一周之内至少吃1-2次鱼，以吸收足够的DHA，满足胎儿的脑发育需求。

4.The main pathways of causing empty anther sacs are obvious enlargement and liquidization of tapetum cells from tetrad to slope nucleus early period;

空囊产生的主要途径：①四分体至单核早期绒毡层细胞体积发生明显的增大、液化；

5.The tapetum belongs to the periplasmodial type.

绒毡层属于周原质团型。

6.The ubisch bodies which appeared on the inner tangential wall of the tapetum at the time of microspore wall formation are partially remain on the surface of matured pollen grain.

小孢子壁形成时开始在绒毡层内切线壁出现的球状体到花粉粒成熟时仍有一部分附着于花粉粒表面。

7.The tapetum degenerates too early.

绒毡层过早退化；

8.Be pregnant 3-5 in month, the nasciturus' tapetum development needs to depend on parent population to supplies ample thyroxine.

怀孕3 - 5个月时，胎儿的脑发育需要依赖母体供给充足的甲状腺素。