查询词典 bivalent

In Chapter 3, six mixed-valence or heteronuclear metal imidazolates have been synthesized and structurally characterized through introducing univalent metal ion into bivalent metal imidazolates, which give a rich topological chemistry including novel topological networks.

其中尤为突出的是混价铜咪唑配合物的控制合成，通过精确调节反应条件得到了混价比例不同的产物，其中一种呈现出新型的四连接网络的拓扑类型。

Process for the preparation of phosphatidylserine of formula wherein R and R independently represent a saturated, mono-unsaturated or polyunsaturated acyl C10-C30, X=OH or OM where M=alkaline or alkaline earth metal, ammonium, alkylammonium including the transphosphatidylation reaction between phosphatidylcholine of the general formula wherein R and R and X have the above specified meanings, R=CH2-CH2- NH2 o CH2-CH2-N(CH3)3 and Serine in D, L or racemic form catalysed by the phospholipase D enzyme, characterised in that said reaction is carried out in a hydroalcoholic medium containing an aliphatic alcohol and in the presence of bivalent metal oxide.

本发明涉及制备式CH 2 OR 1 CHOR 2 CH 2 O-P-OCH 2 -CH(NH 2 )-COOHX的磷脂酰丝氨酸的方法，其中R 1 和R 2 独立地表示饱和的、单不饱和的和/或多不饱和的酰基C 10 -C 30 ，X＝OH或OM，其中M＝碱或碱土金属、铵、烷基铵，该方法包括通式CH 2 OR 1 CHOR 2 CH 2 O-P-OR 3 X的磷脂酰胆碱其中R 1 和R 2 以及X具有上述特别的含义，R 3 ＝CH 2 -CH 2 -NH 2 或CH 2 -CH 2 -N (CH 3 3 与D、L或外消旋形式的丝氨酸之间的转磷脂酰化反应，该反应是通过磷脂酶D酶催化的，其特征在于所述的反应是在包含脂族醇的含水醇介质中并且在二价金属氧化物的存在下进行的。

In this study, insect-resistant cry1Ah gene and glyphosate-toleranct 2mG2-epsps gene was used to construct an insect-resistant/glyphosate-tolerance bivalent plant expression vector, glyphosate isopropylamine salt as a screening agent, 2mG2-epsps gene as a selectable maker gene, the vector was transfer into maize immature embryonic calli by microprojectile bombardment, 80 T0 transformed plants were obtained.

本研究利用抗虫基因cry1Ah和耐草甘膦基因2mG2-epsps构建了双价植物表达载体，通过基因枪轰击转化玉米，以2mG2-epsps为筛选标记基因，以草甘膦异丙胺盐作为筛选剂，获得到了抗性较好的T0代转化植株80株。

The aim is to gain transgenic lines resistant to Botrytis cinerea, and test the synergistical effects of bivalent gene.

绿色荧光蛋白基因活性检测，PCR和Southern杂交检测表明，外源基因分别以1～4个拷贝整合到番茄基因组中。

Terminalization The movement of chiasmata to the end of the bivalent arms, a process that may occur during late prophase I of meiosis.

交叉移端：发生在第一次减数分裂后期，染色体交叉向二价体染色体臂的末端移动的过程。

Methods The vaccinal strains Z10and Z37of HFRS bivalent inactivated vaccine were adapted in vero cells and continuously porpagated. The Vero-cell derived HFRS purified vaccine were developed using the different passages of these 2 viral strains.

方法将HFRS双价沙鼠肾细胞灭活疫苗的生产疫苗株Z10、Z37适应到VerO细胞上进行连续传代，并用不同代次的VerO细胞适应株制备VerO传代细胞疫苗。

Bull; Bit: A single, bivalent unit of binary notation.

bit ：一个单个的二进制二价符号，相当于一个十进制&数&

Which, sGKz8 varieties in the 2003-2004 national regional trials, seed cotton, lint, lint before frost control were 41 varieties of cotton by 121.1%, 126.4%, 129.2%, ranking first in 2005 through the national approval , is the first of bivalent insect-resistant genes to the three new varieties of hybrid cotton; otherwise GKz28, sGKz6, sGKz34 combination of a total of three test are participating in the National District.

其中，sGKz8在2003-2004年全国品种区域试验中，籽棉、皮棉、霜前皮棉分别为对照品种中棉所41的121.1%、126.4％、129.2%，均居第一位，2005年通过国家审定，是我国第一个转双价抗虫基因的三系杂交棉新品种；另有GKz28、sGKz6、sGKz34共3个组合正在参加全国区试。

The association of XY-bivalent and the rearranged autosomes interfere with or affect, by their contact, X chromosome normal functions.

XY-二价体与重排染色体联合，干扰或影响X染色体的正常功能，从而干扰精子发生。2。

The bivalents were not homogeneously labeled with this technique and the extension signals were very apparent and relatively stable,and these can be applied to identify the individual bivalent.

其结果显示黄鳝二价体上DNA延伸效果十分明显，银颗粒基本上是非随机性的相间排列，而且主要特征是基本稳定的，据此可以进行染色体识别。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。