化合物

It has been also demonstrated that lots of some chemical compounds not only have the utility of cancer therapy, but also can reduce the side effects of currently used drugs. Thus, to search for a succedaneum much more effective and easily absorbed by human-body seems to be an appropriate approach to substitute the presently used clinical remedy against cancer.

而在相关研究当中显示，许多抑制血管增生的化合物不仅有抑制肿瘤生长的作用且相对有著较低的副作用，因此寻找有效且容易被人体吸收的化合物用以取代目前临床对於癌症的治疗药物，似乎是比较妥当的方式。

A higher level of sulfhydryl compounds wasobserved as fruit stored at low temperature.

低温贮藏时果实组织虽保持较高的巯基化合物水平，但巯基化合物DTT处理并不影响荔枝褐变的进程。

We also found for the first time that the reaction between ketone and alcohol to ketal was catalyzed by benzamide and their derivatives, and the related mechanism is proposed. Furthermore, under the same irradiation condition, the photo-reaction of succimide with alcohol as well as the photolysis of benzene sulfonamide was also found and studied.

并首次发现在紫外光激发下，苯甲酰胺对酮和醇生成缩酮的反应有一定的催化作用，进而对一系列芳酰胺类化合物作了对比实验，发现芳酰胺类化合物均能对缩酮的生成有催化作用，并对芳酰胺的作用机理进行了初步探讨。

The results show that the yield of compound 5 reached a maximum of 65% under the optimum reaction conditions, where the pH of the reaction medium was 3.8~4.0, the reaction temperature was 85~90 ℃, and the molar ratio of zinc powder to compound 1 was 2.6:1. The optimum oxidant for the selective oxidation of α-methyl on compound 5 was sulfuryl chloride, and the yield of the product was 52.5%.

结果表明，合成化合物5的最佳反应条件为：反应介质pH值为3.8~4.0，反应温度85~90℃，锌粉与反应物1之间的摩尔比2.6：1，产物收率达到65%；化合物5中α-甲基选择性氧化反应的最佳氧化剂为硫酰氯，产物收率达到52.5%。

He worked in a laboratory filled with syphilitic rats trying compound after compound.

他在充满了在化合物以后试用化合物的梅毒的老鼠的一个实验室工作了。

In the paper,the essential oil of Syringa oblate Lindl var affinis Lingelsh bud from Qinghai was extracted by the method of water vapor distillation.

采用水蒸气蒸馏法提取了产自青海的白丁香花蕾的挥发油，应用GC/MS方法对其化学成分进行了分析，分离出47个色谱峰，鉴定了26个化合物，占总峰面积的88.7%，主要成分是丁香酚、丁香醇、石竹烯、苯乙醇等化合物。

In the paper,the essential oil of Syringa oblate Lindl var affinis Lingelsh bud from Qinghai was extracted by the method of water vapor distillation. After detected by GC-MS,47 peaks were separated from the oil. Among them,26 compounds taken up 88.7% of total peak areas were identified.

采用水蒸气蒸馏法提取了产自青海的白丁香花蕾的挥发油，应用GC/MS方法对其化学成分进行了分析，分离出47个色谱峰，鉴定了26个化合物，占总峰面积的88.7%，主要成分是丁香酚、丁香醇、石竹烯、苯乙醇等化合物。

Volatile organic compounds are hydrocarbons that tend to evaporate into the air when gasoline is transferred from tank trucks to service station storage tanks or from gas pumps to vehicles.

挥发性有机化合物碳氢化合物，往往会蒸发到空气中，通过罐车到服务站储油罐或由加油站到车辆等。

All the targe compounds had anti-inflammatory activity test. The preliminary bioassay test suggested that some of these compounds should show good anti-inflammatory activity. They are worth investigation in further, and may gradually develop into a new generation of practical anti-inflammatory drugs.

3对所合成的目标化合物进行抗炎活性筛选，发现部分化合物有较强的抗炎活性，值得进一步深入研究，并逐步开发成实用的新一代抗炎药。

Reactions of 5-amino-lH-pyrazoles with aromatic and aliphaticα-bromoacetophenones, followed by acid-mediated iminative cyclization and the ensuing tautomerization, produced methylthio-imidazolo[1,2-b]pyrazoles 6a-6g.

咪唑并[1，2-b]吡唑甲硫醚类化合物经过室温下H_2O_2/CH_3COOH温和氧化，得到咪唑并[1，2-b]吡唑甲基亚砜类化合物7a-7g。

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。