子体中的极核和卵核遗传上是同一的。
The polar and egg nuclei of the female gametophyte are genetically identical.
雌配子体中的极核和卵核遗传上是同一的。
The polar and egg nuclei of the female gametophyte are genetically identical.
雌配子体中的极核和卵核遗传上是同一的。
The polar and egg nuclei of the female gametophyte are genetical ly identical.
精核染色质在极核里分散的时间大约需用1小时。
The scattering of the sperm chromatin in the polar nucleus takes about 1 hour.
成熟胚囊由印器，具二极核的中央细胞及三个反足细胞组成。
The mature embryo sac comprises an egg apparatus, a central cell with two polar nuclei and three antipodal cell.
中央细胞以后的发育主要是极核的发育和极核周围胞质的变化。
Further development of the central cell mainly involved changes in the orientation of the polar nuclei and the distribution of the cytoplasm.
开花前 ，两极核融合成次生核 ，或不融合仍保留极核状态。
Two polar nucleis fuse into the secondary nucleus, or they dontt fuse before the anther shed.
极核细胞能自主融合成为一个次生大细胞，但未观察到融合后的细胞进一步分化。
Polar nuclei could autofused to a big secondary cell, but further differentiation of the cell was not observed.
合理的城镇体系结构是区域经济的骨架，更是带动区域经济增长的极核和强大引擎。
Reasonable urban system's structure is framework of regional economy, it is also nucleus and great engine to prompt the development of regional economy.
成熟的胚囊是五核胚囊：由近珠孔端的卵细胞和两个助细胞以及两个中央极核细胞构成的。
The mature embryo sac was one with five nucleus, i. e., egg apparatus and two-nucleus central cell.
近代的探险队已经从绿色冰山和冰核中带回了一些冰块样本，这些样本呈垂直的圆柱状，是沿着南极洲大陆的冰川冰架从极深的位置中取出的。
Recent expeditions have taken ice samples from green icebergs and ice cores—vertical, cylindrical ice samples reaching down to great depths—from the glacial ice shelves along the Antarctic continent.
在冰核中有证据显示两极的冰盖曾经七次扩大，并且每一次扩大都伴随着温室气体排放的明显减少，直到冰盖再次缩小。
There is evidence in this ice-core record of seven periods when the ice caps expanded, and each of them shows a steady decline in the level of greenhouse gases after the ice receded again.
"OK丘比特，"在其简介中给人的印象是机智、受过教育的时髦极客，主修数学，收集"傻瓜庞克"乐队的唱片以及正在写"呢喃核*"类型的电影剧本。
OK Cupid, in its profile, comes across as the witty, literate geek-hipster, the math major with the Daft Punk vinyl collection and the mumblecore screenplay in development.
本文讨论了高激发核中的同位旋标量表面巨共振和偶极巨共振。
The isoscalar giant surface resonance and giant dipole resonance in highly excited nuclei are discussed.
核小体有着葡萄状结构，由葡萄藤样的DNA链环绕组蛋白所形成，其作用是组织极长的DNA分子。
Nucleosomes are grape-like structures formed by strands of DNA wrapped like vines around histone proteins, and serve to organize enormously long DNA molecules.
动物性极：与包含细胞核和多数细胞质的植物性极相对的卵的部分。
Animal pole: the portion of an egg opposite the vegetal pole that contains the nucleus and MOST of the cytoplasm.
目的：探讨乳腺癌er、PR与癌组织的组织学类型、核分极、纤维间质增生及患者年龄等因素的关系。
Objective: to investigate the relationship among ER, PR of breast carcinoma and histological type, karyon grading, stromal responsive fibrosis, and the age of the patient.
按其主树突的分布图式，可将鸽峡核神经元分成三类：（1）单极神经元，（2）双极神经元和（3）多极神经元。
The impregnated isthmic neurones are categorized into three types based on their dendritic patterns: (1) monopolar neurones, (2) bipolar neurones and (3) multipolar neurones.
CB能抑制卵母细胞激活后第二极体排出，从而提高原核的形成率。
CB can increase the two pronuclei formation rate of oocytes by inhibiting the extrusion of second polar body.
本文给出了利用偶-偶核非轴对称转动波函数与能极，以计算奇a核非轴对称转动波函数与能级的方法。
In this paper, we have given a method for calculating non-axial rotational wave functions and energy levels of odd-A nuclei by means of that of even-even nuclei.
建立了偶极矩、核四极矩偶合常数中的场梯度及晶体非线性光学系数的近似理论表达式。
Approximate theoretical expressions are given for dipole moment, field gradient at the nucleus, and nonlinear susceptibility of crystals.
目的探讨卵细胞第一极体形态与原核期受精卵形态、卵裂期胚胎质量的关系。
Objective To investigate the relationship between the first polar body morphology of oocyte and the zygote morphology in pronucleus stage, embryo quality in cleavage stage.
基于推转模型和粒子转子模型关于奇奇核二准粒子转动带磁偶极约化跃迁几率的描述，对稀土区双奇核的这一行为进行了讨论。
Such a phenomenon is discussed based on the formula of magnetic dipole reduced transition probability deduced from the Cranking Shell Model and Particle Rotor Model respectively.
利用核十六极形变最普遍的参数化形式，通过正则量子化程序，导出了参数空间十六极振动的量子化哈密顿量，分析了十六极形变和振动对于核结构研究的重要意义．。
The quantized Hamiltonian is derived from the general parametral form of the hexadecapole Vibration in the space of parameter, which maybe important to analyze properties of nuclear stature.
这种原子核像缩微的陀螺围绕一根轴线自旋，产生磁性，像具有S极和N极的磁铁棒一样。
Such nuclei spin on an axis like miniature tops, giving rise to a magnetic moment, which means the nuclei act as if they were bar magnets with a north and south pole.
这种原子核像缩微的陀螺围绕一根轴线自旋，产生磁性，像具有S极和N极的磁铁棒一样。
Such nuclei spin on an axis like miniature tops, giving rise to a magnetic moment, which means the nuclei act as if they were bar magnets with a north and south pole.
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