| 释义 |
tet·rad 英ˈtetˌræd美ˈtɛtˌrædAHDtĕtʹrăd' ＳBNC⁹⁷²³³⁺⁷iWeb⁴³⁶³⁹
基本英英搭配记法近义反义例句Thesaurus例句
n.四位组¹⁴;四分体⁷²;四元基¹⁴复数tetrads
生物
Noun:
the cardinal number that is the sum of three and onetetrad scar四分体痕tetrad effect四素组效应pollen tetrad四分花粉rhomboidal tetrad菱形四合花粉…unordered tetrad非顺序四分体…megaspore tetrad四分大孢子inversion tetrad四重反演轴cell tetrad细胞四分体chromatid tetrad四分染色单体…chromosome tetrad四价染色体, 染色体…tetrad mark四分体痕nuclear tetrad核四分子tetragonal tetrad四边形四分体,四边形…dummy tetrad虚假四位二进制,仿真…screw tetrad四重螺旋轴tetrahedral tetrad四面体形四合花粉…ordered tetrad顺序四分体
钱博士tetr四+adS.名⇒四个，四个一组tetr四+adS.名⇒四个，四个一组近义词 four四4four,四quatern四quartet四重奏quaternity四个一组foursome四人的一组quaternary第四纪的quaternion四个一组IV自变数初始速度=I…quadruplet成套的四件东西…
名词100%
用作名词Abnormal development was observed attetradand mature embryo sac.在四分体和成熟胚囊时期观察到了异常发育现象。
The megaspore mother cell meiosis to form a linear megasporetetrad.大孢子母细胞减数分裂产生直线形大孢子四分体。as in.(four
同义词 quadruple,quadruplicate,quaternaryquadrigeminal,quadripartite,quadrivial,quaternateas in.four
同义词 quadrivium,quadrumvirate,quadruple,quadruplet,quadruplets,quartet,quartette,quaternary,quaternion,quaternity,tetralogyquadrigeminal,quadripartition
fouradjective having four of something
quadrigeminal,quadripartite,quadrivial,quadruple,quadruplicate,quaternary,quaternate
fournoun four of something
quadrigeminal,quadripartition,quadrivium,quadrumvirate,quadruple,quadruplet,quadruplets,quartet,quartette,quaternary,quaternion,quaternity,tetrad,tetralogy Micronuclei were observed in the tetrad stage.
四分体阶段有微核。 cnki
Our main results were as follows: the ovary of male I degenerated and disappeared quickly upon megaspore tetrad degeneration, and developed into macrosporocytes;
结果发现： 色木槭一期雄花雄 I在大孢子四分体退化形成功能性大孢子时期，子房萎缩并迅速退化消失； biodiversity-science
The micronuclei were not observed in tetrad stage.
四分体阶段无微核出现。 cnki
The application of plant root-tip micronucleus and tetrad micronucleus technique for monitoring industrial waste water and mutagens had been reported.
本文报道了应用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结果。 cnki
The character of the fractionation of REE in soybean is: The roots exhibit middle REE MREE enrichment and M- shape variation M- type tetrad effect.
大豆各器官 REE分异特征：根中具有显著中稀土 MREE富集及 M-型四重效应分布； cnki
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。 cnki
YoUng ear differentiation of spring wheat goes through30 days from the begin ning to the end of the tetrad stage in Tianjin area.
天津地区春小麦从幼穗分化开始到四分体期结束约经历30天时间。 cnki
Based on the PAPD and tetrad analysis, It is easy to explore the molecular marker linked to thermotolerance- related genes and to clone the related genes for further experimentation.
从而为今后通过四分子分析寻找与耐热相关基因紧密连锁的分子标记，并进一步克隆和定位有关的基因打下基础。 cnki
For a large class of vector fields, the central term of the reduced algebra near the horizon is proved to be zero by use of the null tetrad formalism.
对于一大类向量场，利用零标架方法证明在视界附近的约化代数的中心项为零。 cnki
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。 cnki
In the framework of Hayashi's gravitation theory with torsion, the general form of parallelism tetrad field in Schwarzshild coordinate system is presented.
在有挠引力理论框架内，给出施瓦西坐标系平行标架场的一般形式。 cnki
Megaspore tetrad is linear. the chalazal megaspore develops into an embryo sac of polygonum type. Hypostase and special integument tapetum exist in the ovule.
大胞子四分体线形排列，合点端大孢子为功能大孢子，胚囊发育类型为蓼型，具有特化的珠被绒毡层和承珠盘。 fabiao
Microspore abortion occurred after the tetrad formation.
小孢子败育发生在四分体形成以后。 cnki
Microtubule bundles in the tetrad cell radiated from the nucleus.
在细胞质存在一个疏松的微管束网络。 cnki
Otherwise, the chromosome morphology involving Haynaldia chromatin was observed at preleptotene I, and the frequencies of chromatin nucleus at tetrad stage and at microspore stage were investigated.
此外，观察了前期 I的簇毛麦染色体形态，统计了四分体和小孢子中小麦和簇毛麦染色质微核频率。 cnki
Stability of the complexes shows the “ Tetrad effect”.
配合物稳定性呈“四分组效应”。 cnki
Suitable low densities could lead to higher values of CAP rate after the male tetrad stage and higher yield in the horizontal- leaf type cultivar.
平展型品种在适宜低密度下，大喇叭口期以后具有较高的群体光合速率，产量领先。 cnki
The microspore mother cell underwent meiosis before it turned into microspore tetrad. Its cytokinesis was simultaneous type, tetrads were mostly tetrahedral, less frequently isobilateral.
小孢子母细胞减数分裂过程中的胞质分裂为同时型，小孢子四分体多为正四面体型，少数为左右对称型。 cnki
The merit of viewing the four as a tetrad rather than selecting only three to form a triangle is that it gives greater prominence to quality.
把这四个变量看成是四元的而不是选出三个组合成三角形，它的优点在于：它给质量上带来了很多显著的帮助。 ibm
The tetrad analysis of some hybrids led the discovery of two complementary genes systems.
通过四分体分析发现一些杂种有两种互补基因系。 cnki
This phenomenon occurs in the early tetrad stage.
这个现象在早期四分体阶段出现。 cnki
With the help of micronucleus technology of Tradescantia paludosa tetrad, the mutagenicity survey was conducted on the lower stream of Mulan and the shallow well water along its banks.
采用紫露草四分体微核技术，对莆田木兰溪下游河溪水和饮用的浅井水进行致突变性监测。 dictall |