查询词典 nuclei

It takes about 0.5 h for a pollen tube from germination to arrive at the micropyle. About 0.5 h after pollination, the pollen tube releases two sperms into one synergid. At 0.5-2.5 h after pollination, the egg cell fuses with one sperm to form a zygote. About 10.0 h after pollination, the division of the zygote begins. The duration of the zygote lasts about 2.5-10.0 h. However, one sperm nucleus fuses with two polar nuclei at 1.0-3.0 h after pollination, and 5.0 h after pollination the primary endosperm nucleus begins to divide.

水稻受精过程经历的时间表如下：授粉后，花粉在柱头萌发；花粉萌发至花粉管进入珠孔大约需要0.5小时；授粉后0.5小时左右，花粉管进入一个助细胞，释放精子；授粉后0.5-2.5小时，精卵融合形成合子；授粉后约10.0小时，合子第1次分裂，合子期为授粉后2.5-10.0小时；授粉后1.0-3.0小时，精核与两极核融合；授粉后约5.0小时，初生胚乳核分裂。

Telophase The final stage in mitosis and meiosis, in which the separated chromatids or homologous chromosomes of bivalents collect at the poles of the spindle and the nuclei of the daughter cells are formed.

细胞分裂的末期：是细胞的有丝分裂和减数分裂的终极阶段。在这个时期内，分离的姐妹染色单体或二价体的同源染色体向纺锤体两极聚拢，同时子代细胞核形成。

In wheat, during mitotic division H3 phosphorylation started in special domains of the nuclei from early prophase and vanished at telophase, remaining mainly in the pericentromeric regions of chromosomes at metaphase and anaphase.

有意义的是分裂末期这列荧光斑点的衰退在时间上与动物细胞的胞质分裂和染色体的解凝集相偶联。

The process in cell division by which the nucleus divides, typically consisting of four stages, prophase, metaphase, anaphase, and telophase, and normally resulting in two new nuclei, each of which contains a complete copy of the parental chromosomes.

有丝分裂细胞分裂过程，其间细胞核分裂典型分为四步：前期、中期、后期和末期，并正常分裂成两个细胞核，每一个都含有母染色体的完全内涵

That is, the condition of crystal growth is the existence of nuclei. Temperature and scale inhibitor have little influence on crystal growth.

试验过程中，晶核生长和晶粒长大的反应级数并不因为温度的改变和阻垢剂的加入而发生改变。

Temperature and scale inhibitors influence mainly on nuclei formation in the whole reaction process.

从整个结晶过程来看，温度和阻垢剂对晶核生长的反应速率产生较大影响，对晶粒长大反应速率影响较小。

Controlled thermonuclear fusion reaction is artificially controlled conditions, will a group of light elements in the nucleus in the high-temperature plasma state, bound by long enough to aggregate into the heavier nuclei of the nuclear reaction.

受控热核聚变反应是在人工控制的条件下，将一团轻元素的原子核在高温等离子体状态下约束足够长时间，聚合成较重原子核的核反应。

However, even the atomic number as high as 94, there is no stable nuclei are the same elements found in nature, and this is the natural decay of uranium and thorium.

可是，即使是原子序数高达94，没有稳定原子核的元素都一样能在自然中找到，这就是铀和钍的自然衰变。

Such crystals are thus efficient condensation nuclei and so promote precipitation from a cloud.

这种晶体是有效的凝聚核，从而促使云变雨降落。

A radioactive transuranic metallic element; produced by bombarding plutonium with helium nuclei.

一种放射性超铀元素，在用氦核子轰击钚时发现。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！