化学合成

It was known that most chemical carcinogens could interfere with the synthesis of DNA, RNA and protein.

大多数化学致癌物均可影响DNA、RNA和蛋白质合成的过程。

Silica glass was synthesized by plasma chemical vapor deposition method, which uses inductively coupled plasma as theheat source.

用高频等离子体作为热源，采用化学气相沉积法合成了石英玻璃样品。

Organic Chemistry is the study of the chemical method of organic synthesis of a variety of useful science.

有机化学就是研究用化学的方法合成各种有用的有机化合物的科学。

The applications and development of solution phase combinatorial chemistry in organic synthesis have been reviewed.

综述了液相组合化学的发展及其在有机合成的应用。

As nicotinic acid and nicotinamide possess the resemble biology function, it also synthesizes the second type of two kinds new organic chromium of containing nicotinamide,〓 and 〓.

基于烟酸与烟酰胺相似的化学结构与生物学功能，合成了第二类两种含有烟酰胺配体的有机铬配合物，其组成分别为〓和〓。

Any of numerous synthetic elastic materials of varying chemical composition with properties similar to those of natural rubber.

合成橡胶：具有不同的化学成分的各种有弹性的合成原料，其属性与天然橡胶类似

A new catalyst Ni K/NaX for the synthesis of methyl isobutyl ketone from acetone and hydrogen in one step at atmospheric pressure has been prepared.

利用化学浸渍法制备了系列Ni－ K／NaX复合型催化剂，用于常压下催化丙酮一步法合成甲基异丁基酮，考察了催化剂组成及反应条件对反应性能的影响。

The copolymers were systematically characterized by elementary analysis, FT-IR, UV-visible spectroscopy, solution high-resolution 〓H-NMR and solid-state high-resolution 〓C-NMR spectroscopes, solubility examination; circular dichroism technique was firstly used to characterize chain structure of the copolymers.

本文通过在刚性的PD聚合物分子链中引入邻乙氧基苯胺链节，使用化学氧化聚合和电化学氧化聚合两类新型聚合方法，合成了三种PD异构体与PHT的共聚物，并进行了聚合反应、结构和性能表征的系统研究，并且比较了氨基的相对取代位置对聚合活性的影响。

For this, he has built a metabolic pathway in yeast cells that synthesises a chemical called artemisinic acid which chemists can easily convert into artemisinin.

为此，他在酵母细胞内建立代谢途径，从而可以将这种酵母细胞合成为一种叫做青蒿酸的化学成分，而化学家们可以很容易地将这种青蒿酸转化为青蒿素。

Peptide nucleic acid is a kind of new nucleic acid mimic invented in the early 1990s', in which the deoxyribose phosphate backbone has been replaced by a pseudo-peptide polymer to which the nucleobases are linked. PNA is uncharged, highly stable in chemical and biological environments, and binds complementary DNA and RNA targets with remarkably high affirnity and specificity.

肽核酸是二十世纪九十年代初合成的一种全新的核酸类似物，它以多肽骨架完全替代DNA中的脱氧核糖磷酸二酯键的骨架，呈电中性，具有极高的生物和化学稳定性、极强的核酸结合能力和特异性，在分子生物学的许多方面得到广泛应用。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失