查询词典 customs bond

Covering the chemistry of liquid-phase oxidation of organic compounds, this book includes the results of analysis with the parabolic model as applied to reactions of peroxyl radicals with C-H bond of different organic compounds.

在有机化学和生物学方面的氧化和抗氧化剂有機化学と生物学の面でのアンチオキダントと酸化します包括有机化合物的液相氧化的化学，这本书象适用于peroxyl 激进主义者与不同的有机化合物的C-H 契约的反应的那样用抛物线的模型包括分析的结果。

For flavonoids containing 2,3-doublebond in their C ring, peroxyl radicals mainly add on the double bond, and the adductsmay transfer to the final products through short chain reactions, which results in theincrease of G values of hydrogen peroxide.

根据实验结果我们认为黄酮类化合物与过氧自由基的反应是加成与电子转移的混合反应。

"Half-water-hydrolysis"method is used to modify the preaminolysis of phenylenediamine in"step coupling polymerization". First, dehydrochlorination polycondensation between Si-OH and Si-Cl group during polycondensation reaction is employed instead of dehydration reaction between Si-OH groups before, which avoids the disconnection of Si-N bond destreyed by isolated water and improves the H-bonding template effect of the bridged-phenylenediamine.

探索用&半水水解-脱氯化氢缩聚&法对我组过去提出的&全水水解法&的预胺解法加以改进，经&半水水解&得到的含硅羟基和硅氯基的单体再以脱氯化氢代替脱水的方法减少了极性溶剂存在下游离水断裂梯撑模板的硅-氮键的可能性，有效地提高了对苯二胺梯撑中氢键的模板作用。

The pinacol coupling of carbonyl compounds affording pinacol s is an important method for the formation of 1, 2-diols and one of the most powerful methods for constructing carbon-carbon bond.

醛酮的片呐醇偶联是合成片呐醇的经典而有效的方法之一，也是形成C-C键的有效途径，一般通过醛酮与金属试剂或金属络合物作用来实现。

The pinacol coupling of carbonyl compounds affording pinacols is an important method for the formation of 1, 2-diols and one of the most powerful methods for constructing carbon-carbon bond.

醛酮的片呐醇偶联是合成片呐醇的经典而有效的方法之一，也是形成C-C键的有效途径，一般通过醛酮与金属试剂或金属络合物作用来实现。

The plastein reaction is considered to involve the formation of polypeptides by a reversal of the usual peptide bond hydrolysis to produce "resynthesized" protein or polypeptides from a hydrolysate of protein.

类蛋白反应通常认为是酶水解的逆反应，是指在一定条件下，通过蛋白酶的催化作用将高浓度的蛋白质水解物与蛋白酶一起加热处理，生成一种类似高分子蛋白质物质的反应。

They can hardly believe what Yigang,the chief of Chinese State Administration of Foreign Exchange have said that chinese government do not want to politicalize the holding of US treasury bond.

他们不太可能被中国国家外汇管理局局长易纲昨天的讲话说服，相信中国政府不希望把持有美国国债这件事政治化。

The FTIR of lignin-based polyhydric alcohol shows new characteristic peak of carbonyl is formed and the characteristic peak of aromatic ring and polyether at 1600cm-1 and 1110cm-1 respectively, which induce there is linkage of chemical bond.

所得木质素多元醇通过红外光谱图表明在1750cm-1附近有新的酯羰基生成，并且在1600cm-1含有木质素的芳香环和1110cm-1的聚醚链，表明木质素磺酸钙与聚醚多元醇在互溶过程中有化学键的接合。

By two steps, the material is obtained by the method that polyhydric alcohol, diisocyanate and a diatomic alcohol chain extender with 8-18 C-structural branch chains are mixed and poured into a polyurethane elastomer that achieves a damping effect through the combination and dissociation of a hydrogen bond between the branch chain and the main chain for consuming energy.

该类材料是通过两步法将多元醇、二异氰酸酯和带有8～18个C结构支链的二元醇扩链剂混合浇注成聚氨酯弹性体，通过支链与主链之间氢键的结合与解离消耗能量，起到阻尼效果。

These kosmotropes may be divided into two groups which act somewhat differently:(1) polyhydroxy compounds fit in well with the hydrogen bonding arrangements, but stabilize any cluster 'flickering' via hydrogen bond rearrangement, as their hydroxyl groups are similarly separated to water-water separations, and (2) zwitterions where the balance between hydrophilicity, hydrophobicity, anionic and cationic characteristics ensures good solubility but only weak net interactions to surrounding water.

这些kosmotropes可分为两个群体行为稍有不同：(1)多羟基化合物符合了氢键安排但任何稳定集束'摇曳'经由氢键重排，由于其羟基同样隔开水水离职，(2)氨基酸的平衡，亲水性，疏水性，阴离子和阳离子特色ensures溶解性好，但只有弱相互作用网，对周围的水。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。