合成物质

The pa-per reviews GHB about its physical and chemical properties,synthesis, abuse, endogenous GHB, pharmacology,pharmacodynamics, clinical applications, pois...

本文就γ-羟基丁酸及相关物质的理化性质、合成、滥用、内源性产生、药理学、药效学、中毒与死亡、临床应用、在DFSA案件中的使用、检测方法等诸多问题作一综述，以期为法医毒物分析等相关领域的实际检案和研究提供参考。

The results indicated that new Lewis acid ferric potassium alum was a green catalyst for the synthesis of ethyl lactate.

研究了新型Lewis酸铁钾矾的制备，并以该Lewis酸为催化剂，通过乳酸和乙醇反应合成乳酸乙酯，考察了催化剂用量、反应时间、酸醇物质的量比对酯化率的影响。

It is suggested that PAMs may be in thelower activity at the early stage of postinoculation,and it may be in the disorder ofglycometabolism,fat metabolism and constructive metabolism after PRRSV infection.

表明PRRSV感染早期肺泡巨噬细胞处于低功能状态，PRRSV感染可造成肺泡巨噬细胞糖类代谢和能量代谢发生障碍，合成代谢及物质运输等功能低下。

The omega fatty acids are the major building blocks of cellular membranes, and they keep the cell membrane optimally fluid. The omegas can convert to hormone like substances that influence metabolic activities.

多价不饱和脂肪酸是维持细胞膜结构和功能的必要组分，也是合成其它生理活性物质的前体化合物。

Unshedule DNA synthesis test is a very important indicator which is used to detect the mutagenesis and carcinogenesis of chemical carcinogens.

非程序DNA合成试验已被用作检测化学物质的致癌性/诱变性，筛选化学致癌物的一项重要参考指标。

The root division was affected by the IAA and iPAs, and the adventitious root formation needed the low level of IAA and CTK. Fourthly, the study on the DNA content in callus of different types and concentrations of estrogen treatment can show that nuclide was a standard of changes of Cardiocrinum giganteums cell.

4通过对不同激素种类和浓度处理中愈伤组织核酸含量变化研究，表明核酸可作为大百合形态发生的标志，大百合愈伤组织分化前RNA含量增加，DNA含量下降，愈伤组织内RNA的升高，标志着细胞分化的物质合成。

VEGF can promote synthesis and secret of pulmonary surfactant protein B; antagonises under-regulation of expression of AEC II receptors by Dexamethasone.

VEGF能促进肺泡发育和肺表面活性物质结合蛋白B的合成、分泌，拮抗地塞米松下调肺泡Ⅱ型细胞受体的表达。

Physical activity every few releases, re-use for at least 80 times when the use of synthetic detergent without adding the other.

活性物质每次释放量很少，可供反复使用至少80次，使用时不需添加其他合成洗涤剂。

With the development of science and production,people manufacture better "soap"-synthetic detergent,its species are increasing,and the scope of application is beyond the field of "washing".Such substances should not have been easy to "soap" and "detergent",but to "surfactant".

随着科学和生产的发展，制造出更好的&肥皂&——合成洗涤剂，其品种和产量不断增加，应用范围远远超出了&洗涤&领域，这类物质已不能简单地以&肥皂&和&洗涤剂&来称呼，而以&表面活性剂&这一名词来统称。

Qianxi tomato fruits in different developing stages were treated with glucose, sodium glutamate and ethephon with different concentrations to study their effects on synthetic quantity of lycopene and confirm the optimum matching of mixed liquid of 3 matters through orthogonal experiment.

方法］用不同浓度的葡萄糖、谷氨酸钠和乙烯利处理各发育时期的千禧番茄果实，研究它们对番茄红素合成量的影响，并设计正交试验确定这3种物质混合液的最佳配比。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！