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Nine kinds of compounds from the connecting units and substitutional radicals (-NH_2、-N_3) substituting the tetrazine are designed and analysed their electronic structures, different radicals contribution to heat of formation, velocity and pressure of detonation.

设计了连接桥和取代基(-NH_2、-N_3)与1，2，4，5-四嗪环直接相连得到9种化合物，分析和讨论了它们的电子结构以及不同基团对生成热、爆速和爆压的贡献。

Meanwhile the defects are also studied by means of the methods of EPR, PSL, thermostimulated luminescence and absorption spectroscopy. These results indicate that the principal defects are F centers and O〓 in PSL. O〓 centers are formed by O〓 ions substituting for F ions with a trapped hole The trap depth of two kinds of F centers is obtained by using thermoluminescent spectra.

同时还利用电子顺磁共振谱，光激励发光，热释发光和吸收光谱的方法，研究了其材料中缺陷的性质，实验结果表明在光激励发光过程中主要的缺陷是F心和O〓心，其中，O〓心是O〓离子替代F〓离子并束缚一个空穴而形成的局域中心。

The phosphorus oxychloride or phosphorus tribromide N, N-dimethylformamide mix and react to form the Vilsmeier reagent used in the reaction. The newly prepared Vilsmeier reagent is added into the reaction bottle provided with the return condenser and the blender; a reaction raw material N, N-dimethylformamide solution expressed in the reaction formula is added into the system; the temperature is risen; the corresponding multi substituting pyridine-2 (1 H)-ketone compound can be made after the column chromatography of the silica gel; the production rate is between 60 and 95 percent according to different reactions.

由三氯氧磷或三溴化磷N，N-二甲基甲酰胺混合获得反应中所用Vilsmeier试剂；将新配制的Vilsmeier试剂加入装有回流冷凝管、搅拌器的反应瓶中，向体系中加入反应通式中表示的一种反应原料的N，N-二甲基甲酰胺溶液，升温，经硅胶柱层析分离得相应的多取代吡啶-2(1H)-酮类化合物，产率视不同反应在60~95％之间。

However, if we use 99% nitrogen gas (N2) as the atmosphere, substituting for air, the viscoelastic parameters reveal an undiscernible change, different from that in an air atmosphere.

采用动态时间扫描的方法对200℃空气气氛中HDPE模量变化进行实时检测，发现HDPE的氧化交联存在与一般的自由基聚合相类似的诱导、自加速和增长三个阶段。

In the problem of handling the social contradictions,the traditional cultures preach up man's power.substituting rights for laws.and when it's unpartial in jurisdiction it's general.while in west people hail for laws.raising up the authority of constitution and rules which not only maintains the rights and freedom of citizens but also at the most degree, decreases the social cost

在社会矛盾的处理上，中国传统文化崇高人治。以权力代替法律。司法不公的现象十分普遍。西方则崇高法治，在全社会崇高宪法和法律的权威。既维护了公民的权利和自由，又最大程度地减少社会成本。

It is necessary to convert plenty of pine sources into economy advantage, and develop a kind of unprecious metal catalyst substituting for Palladium.

目前，松香歧化反应用最理想的催化剂是Pd/C催化剂，但贵金属Pd在地壳中含量少，价格贵，而我国钯主要依靠进口，要把云南省丰富的松林资源优势转化为经济优势，研究开发一种可以替代Pd的非贵金属催化剂具有重要的意义。

Because Yunnan Province abounds with pine resources, it is necessary for us to develop a kind of unprecious metal catalyst substituting for Palladium and improving the devel.

但贵金属Pd在地壳中含量少，价格贵，而我国钯主要依靠进口，且云南省具有丰富的松林资源，因此，研究开发一种可以替代Pd的非贵金属催化剂对促进云南林产化工的发展具有积极的作用。

To develop novel live attenuated influenza vaccine, we explored the feasibility to attenuate influenza virus by codon deoptimization of NS1. According to the codon usage bias in influenza A virus, we designed and synthesized a condon-deoptimized NS gene by substituting codons of 110 amino acids in the NS1 gene of A/Puerto Rico/8/34(H1N1) with unpreferred synonymous codons.

根据A型流感病毒密码子使用偏嗜性，选取稀有密码子对A/Puerto Rico/8/34(H1N1)病毒NS1基因内部110个氨基酸区域进行密码子同义突变改造，并全基因合成NS基因，利用反向遗传操作技术拯救出含有密码子去优化NS1基因的重组病毒。

By cutting off milk and substituting with unsweetened soya milk, cancer cells are being starved.

畜养的肉类内也含有抗生素、生长激素或寄生虫，特别对癌症病人来说这些都是有害的。

Substituting the port and irq values for your own.

以上命令中的数据根据你的猫的port口和IRQ而定。

We stopped by the old fashion ice cream parlor Manhattan Beach Creamery for some refreshment. The "No Shoes, No Shirt, No Problem" sign on the wall epitomizes the beach lifestyle.

我们去商店区的一家老式冰淇淋店坐坐，墙上挂著「没鞋，没上衣，没问题」的牌子完全捕捉了海滩生活的随性及风格。

"If therefore", argues Bellarmine we can offer our prayers and our satisfactions in behalf of those detained in purgatory, because we are members of the great body of Christ, why may not the Vicar of Christ apply to the same souls the superabundant satisfaction of Christ and his saints--of which he is the dispenser?

" "因此，如果"，认为贝拉明（德indulgentiis ，十四）"我们可以提供我们的祈祷和我们满意的代表那些被拘留在炼狱，因为我们是成员的伟大基督的奥体，为什麼可能不是牧师基督适用於同样的灵魂满意的过剩是耶稣和他的圣人-他是在配药？