四体
- 与 四体 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Tetraploid veliger were carried out with four chemicals on this scallop in 1998—2000. Tetraploid were induced by inhibition of the polar body and first mitosis with cytochalasin B, colchicine, 6-DMAP and caffeine combined with CB, respectively.
中文摘要:1998—2000年采用细胞松弛素B、秋水仙素、6-二甲基氨基嘌呤(6-DMAP)以及咖啡因等药物抑制虾夷扇贝第一极体(PB1)释放、PB1和第二极体(PB2)释放以及抑制第一次卵裂等方法,诱导虾夷扇贝四倍体。
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Five full-scale specimens were tested in this study. One is unreinforced beam-to-column connection, and the other four specimens are reinforced with either shear tab or vertical stiffener at beam-to-column connection.
五组试体包含一组未补强之梁柱接头试体,与四组以剪力板或垂直加劲板补强梁柱接头处之试体。
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Part 7 is the conclusion of this paper.The main research in this paper includes:1 The 22 mixed ligand complexes were synthesized in which bipyridine-, phenanthroline 5-nitrophenanthroline , phenanthroline- 5,6-dikentone and biquinoline are the first ligand and chlorine ion phenylalanine, tyosine asparagic radical 2.6-diaminocaproic radical tryptophan , histidine malonate(mal2-) benzyl malonate (bmal2-) phenethtyl malonate (pmal2-) are the second ligand.
本文具体研究内容包括四部分:一、合成了以联吡啶、邻菲啰啉、5—硝基邻菲啰啉、邻菲啰啉-5,6-二酮、联喹啉为第一配体,以Cl~-、苯丙氨酸根、酪氨酸根、天冬氨酸根asp~(2-、赖氨酸根、色氨酸根、组氨酸根、丙二酸根mal~(2-、苄基丙二酸根bmal~(2-和苯乙基丙二酸根pmal~(2-为第二配体的共22个混配配合物,制备了其中6个混配配合物和1个单配体配合物单晶,用X-射线单晶衍射法测定了晶体结构。
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Result showed that tetrasubstituted calix [4] arenes in lower rim were stronger complex abilities than bisubstituted calix [4] arene with transition metal, heavy metal and rare earth ions. But when introducing the aminephenolicalcohols in the 1, 3-bisubstituted calix [4] arenes, the complex abilities were improved.
结果表明:在Lower rim上四取代的杯[4]芳烃配体比1,3-二取代的杯[4]芳烃配体对过渡金属离子,重金属离子及稀土离子有更好的配位能力,但当1,3-二取代的取代基上引入醇胺链型配体时,对金属离子也有很好的配位能力。
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Morphologically, the two hexaploids are characterized by the general gigantic appearance, diagnostic of the enhancing growth in horizontal direction of such organs as leaves, stems, various compone...
它们在减数分裂时的单价体数目比三倍体显著地减少了,但另外却有少量三价体和四价体出现。
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How to process it affects the equivalent prediction of the entire conductor performance. According to the traditional composite theory, the following several predictions were carried: only consider the functions of the stainless steel conduit outside the cable body, the double insulation and the double shielding layer; the influence of the flexible cable body is neglect, so only consider the function of its internal helium tube; the material nature of the cable body is assumed the isotropism, which the elasticity modulus is 1-10 GPa (here taking 2 GPa); combining the homogenization theory with the composite damage theory.
在传统复合材料理论的基础上,对ITER超导电流传输线导体等效弹性模量进行理论预测:预测一,只考虑电缆体外的不锈钢导管、双绝缘和双屏蔽层;预测二,忽略柔性电缆体的影响,但考虑其内部氦管;预测三,假设电缆体呈各向同性,弹性模量取1~10 GPa;预测四,利用均匀化理论分析电缆体的等效弹性模量,复合材料损伤理论分析超导电缆与中心氦管之间、电缆复合体和不锈钢导管之间界面情况。
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Complex (2) through the dissociated pyromellitic acid hydrogen bonding between the ligand and the phen ligand stacking interaction between the formation of a 3D supramolecular structure, but the complex (3) is only through the phen ligand between the stacking structure of the formation of 3D supramolecular structure.
配合物(2)通过游离的均苯四甲酸配体之间的氢键作用和phen配体之间的,π-π堆积作用形成了3D超分子结构,而配合物(3)则只是通过phen配体之间的π-π堆积作用形成3D超分子结构。
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However, the use of Aegliops tauschii in improvement of wheat yield trait has not been reported. In this study, T.durum-Ae.Squarrosa amphidiploids was crossed with common wheat PH85-16, then backcrossed with PH85-16. The variation characteristic of the main yield traits of BC1F1 and BC1F2 were analyzed. Then, QTLs affecting yield traits were detected by 130 SSR primer pairs of D genome in BC_1F_1 and BC_1F_2.The result showed chromosomes in D genome from Aegliops tauschii affected yield trait of wheat significantly.
本研究以二倍体小麦粗山羊草与四倍体硬粒小麦合成的双二倍体Am6为亲本,与普通小麦PH85-16 进行杂交,再用PH85-16 进行回交,对获得的回交后代进行了主要产量性状调查,利用位于小麦D 基组的SSR 分子标记进行了分子标记分析,对来自粗山羊草与产量性状相关的数量性状位点进行定位,探讨粗山羊草对小麦产量性状的影响。
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For comp ound 7, the cage is consisted by six MoO〓 and four PO〓. The six MoO〓 octahedrons have consisted to the loop structure, the there PO〓 tetra hedron become triangle and the other one lies the centre. The one oxygen of two MoO〓 octahedron is coordinated to Mn atom which linked the other cage like this cag e and this Mn have six ligands.
在化合物7中,每一个笼由6个MoO〓八面体和4个PO〓四面体构成,6个MoO〓八面体构成环,四个PO〓四面体形成一个三角形在其上面,4个P和6个Mo具有C〓的对称性,每二个MoO〓八面体提供一个O原子与Mn原子配位,这个Mn原子再与相同的这样的笼相连,形成一个中间细两端粗的形状,这个Mn原子是6配位的,每一个这样的笼再通过一个Mn原子连接起来,形成二维的网状结构,而这个Mn原子是五配位的。
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"Wheats are called diploids when they have seven chromosomes, tetraploids when they have fourteen , and hexaploids when they have twenty-one."
其性细胞具有7条染色体的小麦称为二倍体;具有14条染色体的称为四倍体;具有21条的称为六倍体。
- 推荐网络例句
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I didn't watch TV last night, because it .
昨晚我没有看电视,因为电视机坏了。
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Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.
今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。
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I'm running my simile to an extreme.
我比喻得过头了。