查询词典 nuclei nucleus

When two deuterium nuclei (each containing a deuteron are proton, one neutron) polymerization into a helium-4 nucleus, releasing a large number of atomic energy.

因为当2个氘核（每个氘核都含有1个质子、1个中子）聚合成1个氦4原子核时，释放出大量的原子能。

Egg apparatus The three haploid nuclei that are situated at the micropylar end of the embryo sac in most flowering plants. The central nucleus is the female gamete and those to either side of it are called the synergids.

卵器：在大多数显花植物的胚囊中，位于珠孔端的三个单倍体核，其中卵细胞位于中央，两个助细胞分别位于两边。

So, endomycorrhiza was formed betweenD. candidum roots and strain AR-15. There were several nucleoli and nuclei in thecortical cells next to exodermis when a nucleus transfer across the cell wall wasobserved. Sometimes plant roots were damaged by strain AR-15. The microstructure of D.

真菌AR-18倾向于根生长，在根周围形成了一个包围圈，由根被细胞侵入外皮层通道细胞及其相邻的皮层细胞，然后向其他皮层细胞推进；真菌菌丝也可由皮层细胞侵入外皮层细胞。

Objective To study the effect of Hypocretin neuropeptide in hypothalamic nuclei participating in regulation of habenular nucleus on sleep-wakeness process and to provid theoretical basis for it.

目的：研究下丘脑Hypocretin神经肽在缰核对睡眠-觉醒调节中的作用，为探讨Hb在睡眠-觉醒调节中的作用提供理论依据。

Following the puncture of zona pellucida with two holes by injection pipette that contained donor nuclei or cells, the injection pipette was pulled back to the perivitelline space while the negative pressure was increased in the holding pipette until the polar body and karyoplasm were wiped off completely. Then a reconstructed embryo was completed by the direct injection of the donor nucleus or cell without pulling out the injection pipette.

首先以预先吸有细胞核或细胞的注射针在固定于持卵针上的卵母细胞透明带上穿刺两个孔，然后一边缓慢地将注射针回拔至卵周隙中，一边逐渐增加持卵针中的负压，直至极体与目标核质被完整吸入持卵针中而完成去核，最后在不拔出注射针的情况下直接注射细胞核或完整细胞进而完成重构胚的构建。

It contains two types of nuclei in each cell, one isgenerative micronucleus, a typical diploid, meiotic germ-line nucleus, andanother one is vegetative macronucleus, a highly specialized expressionorganelle that provides all the transcripts for cell function.

其具有一个无转录活性的生殖核，负责有性生殖过程中遗传物质的传递；一个具转录活性的营养核负责细胞营养生长过程中基因的表达。

A nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy .

一个大的核子分裂为众多小核子并伴随能量释放的核反应过程。

Cell division in which the nucleus divides into nuclei containing the same number of chromosomes.

核子分裂为多个含有相同数量染色体的一种细胞分裂。

The ultrastructure of HOC was characterized by their small sized, oval nuclei, and higher nucleus/plasma ratio.

电镜下显示HOC具有形态小，核以卵圆型为主，高的核/浆比例等特点。

The morphological characteristics of freshly isolated cells were that they were small cells with ovoid nuclei and a high nucleus/cytoplasm ratio.

大鼠和猪肝卵圆形细胞高水平表达白蛋白、CK-19和OV-6，为成年大鼠和猪肝组织存在肝干细胞提供了强有力的证据。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。