tetrad

This phenomenon occurs in the early tetrad stage .

这个现象在早期四分体阶段出现。

Abnormal tetrad rates in different generations were 0.16 , 0.13 and 0.36 respectively .

异常四分体频率各代分别为0.16、0.13和0.66。

Packet Tetrad Model : A New Method for Measuring Bottleneck Bandwidth

四元分组测量模型：一种测量网络瓶颈带宽的新机制

Stability of the complexes shows the " Tetrad effect " .

配合物稳定性呈四分组效应。

The Application of Artificial Nerve Network to the Simultaneous Determination of Tetrad Metal Ions

神经网络在四组分金属离子同时测定中的应用

A summary on surgical treatment of 297 patients with Fallot 's tetrad

法洛四联症297例外科治疗

Tapetum cell hyperplasia from the tetrad to the single nucleus early period .

绒毡层细胞在四分体&单核早期发生增生；

Using tetrad field get spinor field equations of unified gravity and electromagnetic field with space-time torsion .

利用标架场得到有挠时空的旋时场方程。

In tetrad stage , the structures of tapetal cells begin to dissociate .

四分体时期，绒毡层细胞内部结构开始解体。

Reduced spinor formalism by means of tetrad calculus with application to yang 's gravitational field equations

标架形式的简化旋量体系及其对杨振宁方程的应用

The characteristics of tetrad was that the nucleus and Golgi bodies being in the active state .

四分孢子的显著特征是细胞核和高尔基体呈活跃状态。

A study on the " tetrad effect " of lanthanide by stoichimetric displacement model of retention

用计量置换模型研究镧系元素四素组效应

Effect of Shallow Well Water along the Mulan Stream on Tradescantia paludosa Tetrad Micronucleus Frequency

木兰溪两岸浅井水对紫露草四分体微核率的影响

Study on Simultaneous Determination of Pigments in Tetrad Mixtures by Spectrophotometry with Wavelet Transform-Principal Component Regression Method

小波变换-主成分回归法在四组分食用色素同时测定中的应用研究

The process of pollen abortion begins with vacuole formation and gradual enlargement in the tetrad .

花粉败育的过程从四分体开始，细胞质内液泡逐渐增大，接着细胞器解体，细胞核解体。

Chromosomes out of nuclei can be seen both at prophase ⅱ and tetrad period .

前期Ⅱ和四分体时期可观察到核外染色体；

42.08 % and 124.13 % at the stage of milky stage of wheat ( male tetrad stage of maize );

小麦灌浆期（玉米大喇叭口期）小麦高出42.08%，玉米高出124.13%；

It appears however that the formation of megaspore tetrad associated with the high GA3 / ZT ratio .

高水平的ZT/IAA有利于大孢子母细胞和花粉粒的形成，而大孢子四分体的形成则需要高的GA3/ZT比值。

The Application of Plant Root-tip Micronucleus and Tetrad Micronucleus Bioassay for Monitoring Industrial Waste Water and Mutagents

植物根尖微核与四分体微核技术对诱变剂和工厂废水的监测试验

A Simple Method to Correct Genetic Distance Between Linked Genes and a Correction of Calculating Data in Tetrad Analysis in Neurospora crassa

链孢霉四分体分析连锁基因距离矫正的一种简便方法和计算数据的修正

In this paper the fine structure of the distribution model of REE in Karst deposits-the tetrad effect and its meaning are discussed .

本文阐述喀斯特沉积物中稀土分布模式的精细结构&稀土四重效应特征及其研究意义。

Microspore abortion occured after the tetrad formation .

小孢子败育发生在四分体形成以后。

The Application of the Technique of Tradescantia paludosa Tetrad Micronucleus for Monitoring Pollution from Three Rivers in Fuzhou

应用紫露草四分体微核技术对福州市3条内河河水污染的监测试验

From tetrad stage to microspore stage , the ABA content in sterile buds was higher than fertile buds .

四分体到小孢子单核期和小孢子二核后期至成熟花粉期不育花蕾ABA含量仍高于可育花蕾。

There is only one layer of parietal cells at the stage of sporogenous cell , megaspore mother cell and tetrad .

造孢细胞，大孢子母细胞和四分体时期，周缘细胞仅1层。

The chromosome fragments which are induced by the agent at the early meiotic stage become micronuclei at the tetrad stage .

如此，那些在早期减数分裂过程中所引起的染色体断裂部分，将在四分体时期变成微核。

The numbers of micronucleoli in tetrad were 2.82 per tetrad on an average .

四分体期，每个四分体微核数平均2.82个。

Tetrad effects of rare-earth elements in rare-metal granites

稀有金属花岗岩的稀土元素四分组效应

Microspore mother cells meiosis was conformed to simultaneous type with mostly tetrahedral and decussate tetrad .

小孢子母细胞减数分裂属于同时型，小孢子在四分体中的排列方式多数为四面体形，少数为十字交叉形。

The abnormality of tetrad callose wall degradation and tapetum development was associated with the abortion of microspore .

导致小孢子败育的原因与四分体胼胝质壁不适时解体和绒毡层细胞发育异常、延迟解体有关。