二价

All companies in Thailand in early 2002 that a 'high-tech world, as China's first China Aerospace Group / Houston hospital / yellow rope lead the entire group radiation center Thai Plant, in full production, pyrocondensation Casing has approved UL / cUL International Security Certification, the industry took the lead at home and abroad by SGS comprehensive test: lead Pb, Cd Cd, mercury Hg, hexavalent chromium Cr, PBB PBBS, PBBs ether PBDES.

全泰公司于2002年初在著称'世界高科技、中国第一照的中国航天集团/中国火箭院/中国黄缆集团辐照中心筹建全泰二厂，已全面投产，热缩套管已通过UL/cUL国际安规认证，国内外同行业率先全面通过SGS测试：铅Pb、镉Cd、汞Hg、六价铬Cr、多溴联苯PBBS、多溴联苯醚PBDES。

The controlled experment shows dinuclear [Cu22] is the intermediate for tetranuclear [Cu44].

控制的实验表明二核的[CuI22]是四核的混合价铜配合物[Cu44]的中间体

The results proved that the removal efficiency of 2,4-DCP could only reach 26% and 40%,respectively if individually by using zero valent iron and natural zeolite.

结果表明：单独采用零价铁屑、沸石为反应介质时，2，4-二氯苯酚的去除率分别为26%和40%；

According to Johnson's Rule and IR spectra, their possible structures are suggested. The bonding parameters of those complexes are calculated by ESR parameters. And the crystal field parameters are calculated by using electronic spectral data. It can be seen that the vanadyl complexes in the solution are ionic complexes and that the α〓 values of those complexes decrease following the increasing of the N donor replacing the O donor of water on the equatorial plane in those complexes. This means that the covalent bonding between vanadium and ligand increases as Ser, Phen or Bipy replace water ligands. The results show the competitive coordinate law that the coordination reactivity of Phen and Bipy is much stronger than that of Ser. The simulation program of ESR is compiled by the theory of ESR in the present work.

测定了VO-丝氨酸二元体系、VO-丝氨酸-邻菲咯啉三元体系和VO-丝氨酸联吡啶三元体系在不同酸度下（pH=1.0～14.0）的乙二醇／水（V／V=1：1）溶液低温ESR谱，发现不同pH下，溶液中具有不同组成的配合物，根据不同pH下ESR谱的变化，利用Johnson的加合规则并结合红外光谱，推测了它们在溶液中的可能结构；利用波谱参数计算了配合物键参数；利用电子光谱数据计算了配合物的晶体场参数，讨沦了它们的成配特性，结果表明：VO配合物属离子型配合物，随取代水分子的配体（Ser、Phen或Bipy）数目增加，键参数减小，配合物共价性增强，同时得出这些体系中，生物配体竞争配位规律：Phen和Bipy与VO的配位能力比Ser强。

In this paper,the discussion is emphasized on the following process flowsheets in Chinese nickel metallurgy,such as the current smelting of low nickel matte with electric furnace and flash furnace concerting of high nickel matte with concterer separation of nickel from copper in grinding and flotation process anode electrolyting of nickel sulphide;two stage counter current ...

本文重点论述了我国镍冶金现有的电炉、闪速炉熔炼低冰镍－转炉吹炼高冰镍－铜镍磨浮分离－硫化镍阳极电解；高冰镍两段逆流硫酸选择性浸出－黑镍沉钴－电积；二次镍精矿制粒－沸腾焙烧生产氧化镍等工艺流程。同时，介绍了我国自行研究开发的高冰镍氯化精炼；焙烧－氨浸－氢还原；镍精矿微波脱硫－热等离子体熔炼高冰镍；大洋多金属结核常压氨浸和硫酸选择性浸出回收镍等有价金属的新工艺新技术。

In the last few years, thanks to the rapid progress of computer technology VB theory redrew attentions of chemists.

近二十年来，由于电子计算机技术的迅速发展，价键理论重新得到了人们的重视。

The company has a twenty years experience in technology research and development team, through the introduction of foreign advanced technology, after several years of efforts to create a stable performance, high efficiency, low energy consumption, and prices reasonable MDN blowing machine series products.

公司拥有一支二十年研发经验的技术队伍，通过引进国外的先进技术，经过几年的努力，制造出了性能稳定、效率高、能耗低、性价合理的MDN吹瓶机系列产品。

RoHS Directive stipulates that from July 1, 2006, All member states should invest in the market to ensure that the restrictions on the use of electronic and electrical equipment, lead, mercury, cadmium, hexavalent chromium, polybrominated diphenyl ether and polybrominated biphenyls and other hazardous substances.

RoHS 指令规定，从2006年7月1日起，各成员国应确保在投放于市场的电子和电气设备中限制使用铅、汞、镉、六价铬、多溴二苯醚和多溴联苯等有害物质。

I. Design and selection of thc high affinity DNA ligands for singIe-chain reprcssorSingle-chain repressor RRn., is a derivative of bacteriophage 434 repressor,which contains covalent1y dimerized DNA-binding domains (axnino acids 1-69) of thephage 434 repressor.

一。设计和筛选单链阻遏蛋白的高亲和力DNA结合序列单链阻遏蛋白RR_是噬菌体434阻遏蛋白的衍生物，它是噬菌体434阻遏蛋白的N端DBD（1—69位氨基酸）组成的共价二聚体。

Every value is to be set according to the sanctuary shekel, twenty gerahs to the shekel.

凡你所估定的价银都要按着圣所的平，二十季拉为一舍客勒。

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。