合成体

A novel β-diketone ligand 3-methyl-phenyl-4-octadecyl-5-pyrazolone and nanoparticle Al2O3 modified by the ligand PMOP were synthesized and characterized by infrared spectroscopy, UV-Vis spectroscopy, 1H NMR and photoluminescence spectroscopy.

合成了以β-二酮配体3-甲基－1-苯基－4-吡唑啉酮-5修饰的Al2O3纳米粒子，并用IR、UV光谱、NMR和荧光光谱等手段进行了表征。

Three rare earth β-diketone complexes: Gd3BIPY, Sm3BIPY, La3BIPY were synthesized by a precipitation method with a mixture of ethanol and water using dibenzoylmethane and 2,2'-dipyridyl as the ligands.

以二苯甲酰甲烷和2，2'-联二吡啶为配体，采用乙醇－水溶液析出法合成了三种稀土－β－二酮配合物：Gd3BIPY、Sm3BIPY、La3BIPY。

Because of domestic and international synthesize hormone medicine and the demand of Dioscorea nipponica Makino quickly increased.

由于国内外合成甾体激素类药物迅速发展，穿山龙需求量也在迅速增长。

Another method was studied for in-situ synthesizing sodium alginate grafted sodium acrylate in disodium hydrogen phosphate dodecahydrates' melt.

本论文提出了另一种方法，是在十二水磷酸氢二钠熔体中，原位合成海藻酸钠接枝丙烯酸钠共聚物作为增稠剂。

By means of polymerase chain reactionand DNA recombinant techniques,the gene encoding mature ouse IL-4 was obtained from plasmid pCD-mIL4 and was inserted into expressionvector pBV220,which contains _RP_L double promoters,synthesized SD sequence and temperaturesensitive CIts857 gene,thus an expression lone eferred as pBV-mIL4 was constructed.

该质粒含有 P_RP_L 串联启动子，合成 SD 序列和温度敏感的CIts857基因，并且去除了完整小鼠 IL—4 cDNA 中3′侧翼非编码区，以原核系统高频使用的强终止密码子TAA 代替了原小鼠 IL-4基因的终止密码子 TAG，经 SDS-PAGE 及凝胶密度扫描分析，表达的重组小鼠 IL-4分子量约为14.2KDa，占总菌体蛋白量的25～30%。

We concluded that dynamic changes of DNA has close relationship with embryogenesis and cell reproduction.

因此DNA的合成动态变化与体胚生长发育和细胞增殖密切相关。

The result suggested that different genomes had different genetic speed or stability during evolution.3 The similarities co-efficiency between wild emmer and hexaploid synthetic was higher than that between wild emmer and common wheat. So that crossing among species is not a simple combination of genomes, but involve introgression of chromosomes, and the evolution made by this action was bigger than that made by environment.4 According to the results of salt tolerance identification, the salt tolerance of wild emmer is lower than that of common wheat in the whole.

野生二粒小麦与普通小麦之间的遗传相似系数稍高于野生二粒小麦与其与节节麦合成的双二倍体的遗传相似系数，说明物种之间的杂交并不仅仅是染色体组简单的合并，其中包括复杂的染色体组本身的一些特性以及染色体之间的互渗且这种作用远大于环境作用所引起的变化。

The effects of aromatic solvents, catalyst amount used and reaction conditions on the enantiomer excess e.

本文还探讨了手性相转移催化条件下扁桃酸异构体的不对称合成。

The method and technical development of acetonation of hexabasic alcohol , and its application in the synthesis of one enantiomer of drugs were reviewed.

论述六元糖醇丙酮化作用的方法和工艺进展，以及其在合成光活性单一对映体药物中的应用。

Not only in the domain of medication,food and hygiene but for the research of polypeptide and asymmetric synthesis,the resolution of the enantiomer of amino acids is of important.

氨基酸对映体的分离分析，在蛋白质多肽的研究、有机化学不对称合成以及医药、食品、卫生等领域都具有重要意义。

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