查询词典 transitive permutation group

It is to say that the patch of RAFT agent on the hairy chains.PS particles with the shell of copolymer of styrene and vinylbenzyl chloride were prepared by similar seeded and starved addition processes. RAFT agent with carboxyl end-group attached on the shell surface of PS particles by group reaction. Adding NIPA and photo-initiator into the continuous phase of polymerization system, hairy PNIPA were obtained.

最后，以表面负载一层乙烯基苄氯的亚微米级单分散聚苯乙烯微球为基质，将水溶性RAFT试剂与聚苯乙烯微球表面的官能团反应以负载到其表面，再在连续相中直接引入NIPA和光引发剂，RAFT聚合得到PNIPA毛发。

Long-term international and domestic well-known export companies - Nippon Paper, Hing Group, Annie Group.

公司长期与国际国内知名公司合作出口--日本制纸、安兴集团、安妮集团等。

Was founded in 1989 and the introduction of Italian spectrometer, the United States NITON spectrometer, Switzerland ARL Direct Reading Spectrometer and other advanced equipment, the use of AOD refining furnace, equipped with a group of 500 mill, 320 mill a group, subordinates have smelting sub - plants, plant cold-drawn, hot-rolling plant, cold steel plant, such as precision, professional production and operation of stainless steel ingots, stainless steel round bar, stainless steel wire, stainless steel forgings, flanges and angle steel, flat steel, square steel, trough various stainless steel products, and custom special material cold-rolled plates and hot-rolled plate small.

江苏省江阴市兴业不锈钢有限公司成立于1989年，引进意大利光谱仪、美国NITON光谱仪、瑞士ARL直读光谱仪等先进设备，采用AOD精炼炉、配备500轧机一组、320轧机一组，下属有冶炼分厂、冷拉分厂、热轧分厂、冷精型钢分厂等，专业生产经营不锈钢锭、不锈圆钢、不锈丝、不锈锻件、法兰及角钢、扁钢、方钢、槽钢等各种不锈钢系列产品，并可定制特殊材质的冷轧板和热轧小中板。

The experimental result is discussed in detail and it is proved that the nitro group in raw material cannot be reduced into amino group entirely.

在对实验结果作了详细的讨论后得出结论：在这一反应中，反应物中的硝基并没有被彻底还原为氨

With the occurrence of H2/Pd-C and ethyl formic ester,the reduction of the nitro group and the formylation of the amino group could be finished in one step.

但是在甲酸乙酯存在下，用H2/Pd-C对Ⅶ的硝基进行还原，得到的Ⅷ中的氨基可当即被甲酰化，使由Ⅶ到Ⅳ的两步反应一步完成。

In conclusion, the nitro group is the main toxic group for both nitrobenzenes and nitroanilines. Wrapping or reducing the nitro groups will decrease the toxicity of the subject chemicals.

总之， 硝基是这两类化合物致毒的主要基团，将硝基包覆或还原为氨基应为此类化合物解毒的重要途径。

The results indicate that the type and number of the substituents affect the toxicity of these compounds directly. A nitro group substitution increases the toxicity of the compounds, and on the contrary, an amido group substitution decreases their toxicity. For multi-nitrobenzenes, the toxicity of the o - or p -substituted nitrobenzene is bigger than that of the m -substituted one.

苯环上取代基的类型、数目和取代位置直接影响到标题化合物的毒性大小，强吸电子基如硝基会降低 Q -NO2和 E LUMO大小，使化合物毒性增强，且邻对位硝基取代的毒性高于间位取代；相反，给电子基团氨基的存在则会使化合物的毒性降低。

Nitrogen balance was positive in the EN group, but it was negative in the PN group.

此前，临床应用较多的是肠外营养支持，在取得一定效果

Each of them exhibited sensitive reduction responses of nitryls. It was found that the reduction peak of nitryl of the position 4-nitrate group of 2,4-dinitrophenol showed great difference from that of the position 5-nitrate group of 2,5-dinitrophenol. The difference between the two reduction potentials was as large as 180 mV.

在pH=5.0、0.1mol/LNaAc-HAc缓冲体系中，2，4-二硝基苯酚和2，5-二硝基苯酚在碳纳米管修饰电极上出现灵敏的硝基还原峰，其中2，4-二硝基苯酚分子中四位硝基的还原峰和2，5-二硝基苯酚分子中五位硝基的还原峰显示出明显差异，二者峰电位差达180mV。

The four fluorescence peaks are generated separately by the combined actions of the methyl parathion and the acetone. In methyl parathion molecule, there are the transition of n electrons in nitryl, the transition of π electronic structure formed by the oxygen atom and the benzene ring and the transition of n electrons in P=O group. In acetone molecule, there is the transition of n electrons in C=O group.

分析得到，四处荧光峰分别是溶剂丙酮分子中C=O上的n电子跃迁、硝基上的n电子跃迁、甲基对硫磷分子中氧原子与苯环形成的大共轭π电子结构跃迁以及P=S上的n电子跃迁共同作用产生。

Looking to bounce back from defeat against Cesena last weekend, the Calabrian boss will be sticking to his tried and tested 4-3-3, with Lopez and Sedivic joined up front in Giampaolo's absence by either Nanni or Plasmati.

鉴于上周末对切塞纳的比赛中反败为胜，这支南方球队将会更坚持其一贯而有效的4-3-3阵型，洛佩斯和塞德维奇将取代受伤缺席的詹保罗，和纳尼或者帕斯马蒂中的一个搭档锋线。

Meanwhile, their exposure to the more freewheeling ways of the West broadened dramatically.

另外，西方较自由的生活方式对年轻人的影响增大。