二价

The three tetranuclear copper complexes are structurally analogous and they all consist of a pair of [Cu22]+ or [Cu22]+ fragments bridged by a deprotonated dicarboxylate into dumbbell-shaped, neutral, tetranuclear molecules.

三个四核混合价铜化合物具有相似的分子结构，它们由一对[Cu22]+或 [Cu22]+碎片和一个架桥的二羧酸配体组成中性的四核的哑铃型结构。

The extraction equilibrium constants of Nd , Eu , Am in the system of seven monoacidic organophosphorus compounds dodecane 1. 0mol/l NO〓are reported. The dependency of the extractability on the PO〓function group、bonding charactor、metallic ion species and the structure of substitute has been examined.

给出了七个烷基磷酸的正十二烷熔液从1.0mol／lNO〓水溶液中萃取Nd、Eu、Am的平衡分配常数Kex，考察了萃取剂PO〓官能团、萃合物成键特性、金属离子及取代基结构与萃取性能间的关系，发现了：（1）可运用取代基自由能加和模型预测辛基膦酸辛基酯对La、Eu、Nd、Am等三价离子的平衡分配数据。

The wood dimensional stability can be improved by glyoxal and wood cross-linking treated according to the amount of C.

根据C元素不同价态含量的变化，证明乙二醛与木材交联处理可以提高其尺寸的稳定性。

Pure inorganic ladderlike polyhydrosilsequioxane was prepared by the way of subsection hydrolysis.

第二部分超常价态过渡金属Ni引发接枝聚合的研究本论文第四章主要研究了利用二过碘酸合镍Ni为引发剂于碱性条件下在纤维素上接枝丙烯酸甲酯，接枝以后的共聚物显示了很好的热稳定性和抗潮性。

The inhibiting rate of natural antigene oligonucleotide was also only 25％ with the similar treatment. Compared with the natural oligonucleotides, the inhibitions of mdrl gene expression by the naphthyl imide-conjugated oligonucleotides were enhanced as much as two times.

与天然片段相比较，在同样条件下，萘二酰亚胺对寡核苷酸的共价修饰可以成倍提高寡核苷酸抑制基因表达的效率。

The acute virus necrobiotic disease virusC AVND viruswas isolated from diseased scallop Chlamys farreri collected in the Taiping Bay of Qingdao. Using purified virus as antigens, the polyclonal antibody with high titer was prepared in rabbits. The polyclonal antibody as the first antibody, IgG-HRP as the second antibody, indirect ELISA technique was set up through selecting the best interactional conditions among the first antibody, the second antibody and antigen.

以患病栉孔扇贝组织中提纯的急性病毒性坏死症病毒作为免疫抗原，注射新西兰白兔制备出效价高达1：32000的多克隆抗体作为第一抗体，第二抗体为辣根过氧化物酶标记的羊抗兔IgG，通过交叉稀释法确定抗原、一抗及二抗的最优反应条件，建立酶联免疫吸附分析方法体系，病毒检测灵敏度达30ng。

Therefore it can he inferred that diethylenetriamine oxycellulose synthesized have the function of adsorbability for uric acid and As.

由此可知所研制二乙烯基三胺基氧化纤维素具有分别吸附尿酸和三价砷的功能。

However, no significant differences were shown between the cell cultures treated with pentavalent methylated arsenicals and control cultures in reduced rates of alamarBlue and morphological observation at the highest levels of exposure.

另一方面，暴露最高1 000 μmol/L 5价甲基砷和二甲基砷的星型胶质细胞的AlamarBlue还原力及细胞形态与对照组比较未见明显差异。

This section firstly carries on a brand-new limits to the labor POBS,and determines the scope of should protecting benefit of enterprise,which helps to solve the most major problem of abusing.It also established several major principles of legislate of POBS,including equal rule,benefit balanced principle,reasonable limit principle, value compensation principle,social public interest first principle,the reason of leaving job not to affect the provision of POBS principle and so on.It carries on standard in principle to the system of POBS and refinement stipulations taking the principle as the direction.It also restructures the system of POBS,making the system Concrete,unitizing and operational from two major angles of on-job POBS and quit-job POBS.

第一小节在第一、二部分的基础上详细分析了我国劳动者竞业禁止制度所存在的几大问题，这几大问题包括：对竞业禁止的概念及适用条件规定不明，提供了滥用的可能性、立法之间存在冲突、立法过于原则、缺乏可操作性等；第二小节，针对我国劳动者竞业禁止制度存在的问题提出建议，首先对劳动者竞业禁止统一进行了全新的界定，确了企业应保护利益的范围，解决了竞业禁止制度被滥用的最大问题；确立了劳动者竞业禁止立法的几大原则，包括平等原则、利益平衡原则、合理限制原则、对价补偿原则、社会公共利益优先原则、离职原因不影响竞业禁止条款的原则等，对劳动者竞业禁止制度进行原则上的规范并以原则为指引对该制度将涉及的某些内容进行了细化的规定；对劳动者竞业禁止制度体系进行重构，从在职竞业禁止、离职竞业禁止两大角度将制度具体化、统一化、操作化，此部分旨在为完善我国立法提供参考。

Depending on the amino acid sequence, the length of the ∝-helical portio are held together by hydrogen bonds formed between r grou , by salt linkages, by hydrophobic interactio , and by covalent disulfide（-s-s-0 linkages.

根据氨基酸顺序的不同，此α-螺旋段的长度也不同，并赋予独特的三级结构，这些折叠部分是靠R基团之间所形成的氢键，靠盐键、疏水相互作用以及共价二硫键而结合在一起的。

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。