查询词典 adducts

The keto form having H atom at N(1) and N(9) was always the predominant structure when cisplatin adducts were bound to guanine. However, other forms could coexist in water.

氢原子在N1和N9上的（1，9）形式异构体总是最稳定的构型，但是别的异构体也可能共存于水中。

This paper discusses the method de-polymerizing gelatinized TDI trihydroxyl adducts and introduces use of the depolymerizing product as toughening agent in perchloroethylene coatings and use in preparation of PU adhesive s.

讨论了胶化TDI三羟加成物的处理方法，介绍了该解聚物作为增韧剂在过氯乙烯涂料中的应用及用于聚氨酯黏结剂的制备，均取得了良好的效果，为胶化聚氨酯废物利用找到了一条处理途径。

A preparation method for"Liquid gold"with high sintering temperature (860～980℃) was developed, which is composed of the resinate of Au, Th, Rh and Sb and several adducts.

提出了将金制成树脂酸盐并与硝酸钍、三氯化铑和三氯化锑的树脂酸盐按照特定比例混合，制备耐高温烧结金水的新方法。

This thesis was designed to study the use of safrole-DNA adducts in white blood cells as a marker for safrole exposure.

研究针对52位有咀嚼槟榔习惯者，对照组为163位经性别、年龄配对后选取的无咀嚼槟榔习惯者。

Safrole is the major component of PBI. Safrole is known to be genetic toxicity and carcinogenesis, and forms safrole-DNA adducts.

文献指出，槟榔萃取物会活化NF-kB讯息传递路径，但是黄樟素和NF-kB之间的关系及其讯息传递路径的机转仍不明了。

Safrole is genotoxic and carcinogenic in laboratory animals, and these effect is mediated through the 2-step bioactivation of safrole by cytochrome P450 and sulfotransferase to stable safrole-DNA adducts.

实验证明此黄樟素DNA键结物对实验动物具有基因毒性及致癌性，而本实验室已能自口腔癌患者的口腔组织侦测到黄樟素DNA键结物之存在。

In this paper, the preparation of selenium and arsenic chitosan adducts or complexes were prepared by chemical treatment of chitosan with sodium selenite and sodium arsenite.

硒和砷都是毒性和药理活性兼备的无机无素，近年来硒的抗癌活性功能、其它生物活性功能和砷在抗癌药物中的应用等受到了人们的关注。

In chapter three,we investigated a new Baylis-Hillman-type reaction,organozinc speciesCF_3COOZnEt can react withα,β-acetylenic ketones and N-tosylated imines providing Baylis-Hillman adducts in good yield in the absence of any catalysts.

有机锌试剂CF_3COOZnEt可以与各种类型的α，β-炔酮及亚胺发生偶联反应，高产率的得到β-取代的Morita-Baylis-Hillman反应加合物，这类反应不需要任何的催化剂，产物具有立体单一型，完全是Z式结构。

Organozinc reagents can react with a variety of α,β-acetylenic ketones and aldehydes in the absence of any catalyst. The one-pot reaction affords β-branched Baylis-Hillman type adducts, the multifunctionalized alkenes, in excellent yields with high stereoselectivity.

这种顺式亲核加成反应的发生是由于该类有机锌试剂既具有较强的亲核性，又具有Lewis酸的特性，使有机锌中R基团从同位进攻中心碳原子而形成新的碳碳键。

In regard to C〓-functionalized hydrophilicpolymer , we synthesized the adducts of C〓 with polyallyl-amine and poly( allylamine- co -hydroxypropyl methacrylate ).

作为〓修饰的水溶性高分子体系，我们合成了烯丙基胺均聚物和烯丙基胺-甲基丙烯酸羟丙酯共聚物，并使之与〓进行反应。

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。