查询词典 reactive

Pd(PPh3)4 was more reactive for boronic acids with sterically hindering F atom, and the coupling reactions gave good yields of 90% and 91% without any self-coupling by-product.

Pd(PPh3)4对于含有位阻F原子苯硼酸的偶联反应很具有活性，且没有自偶联产生，产率可达90%及91%。

At the end of the study, body weight, blood pressure and blood lipid were measured, and atherosclerosis of brachiocephalic arteries were determined by histological examinations. Production of superoxide anion and reactive oxygen species were measured in the thoracic aorta of mice using chemiluminescence and histofluorescence techniques.

在实验结束时，测量小鼠体质量、血压及血脂水平；对头臂干动脉粥样硬化病变进行病理学检查；化学发光法及组织荧光法检测小鼠胸主动脉超氧阴离子和活性氧。

BACKGROUND: Reactive depression and depressive neurosis are both psychogenic emotional disorders, clinically manifested by memory deterioration,impaired concentration, slow reaction, and bradyphrenia, among other cognitive function impairments.

背景：反应性抑郁症和抑郁性神经症为心因性情绪障碍，临床上均有记忆力减退、注意力不集中、反应迟钝、思维迟钝等认知功能损害的主诉，患者这种主观体验是否属实，对这类疾病认知功能损害客观的实验室的依据较少。

Perhaps, most interesting about the Breva V 1100 is the "reactive shaft drive" patented by Moto Guzzi, which is a design that incorporates the shaft drive in the aluminum alloy swingarm.

如果您没有电线，在利用连接到交岔路口地面的框架，目前从头灯， turnsignals等将不得不通过督导颈部轴承和可能导致的问题。

Jq Ez6_{0An outbreak of highly pathogenic avian influenza caused by H5N1 virus occurred in Vietnam, Japan and Korea, commencing in December, 2003. By February, 2004, it has been distributed widely in Asia and brought heavy losses. H5N1 are ball-like RNA viruses, birds can shed them via respiratory system, ocular secretions and feces, sometimes transferred to human and cause lethal infection. H5N1 patients have prominent features of reactive hemophagocytic syndrome,bronchiolar inflammation, necrosis of bronchial epithelium and organizing,diffuse alveolar damage with interstitial fibrosis.

2003年12月，H5N1型禽流感病毒在越南、日本和韩国爆发，到2004年2月，该病毒已在亚洲广泛蔓延并带来了巨大损失。H5N1是球型RNA病毒，禽类间可通过呼吸系统、眼分泌物和粪便传播，也可传染人类甚至导致死亡。H5N1感染者的特征是反应性噬血细胞综合征、细支气管炎症、支气管上皮坏死和机化、弥漫性肺泡病变和间质纤维化。

According to molecular design, an inter-molecular-coordination borate eater containing nitrogen as coupling a-gent was synthesized. There are two reactive groups, amino and butoxy in the borate ester molecule.

中文文摘］通过分子结构设计，合成了一种氮-硼内配位结构的硼酸酯偶联剂，解决了硼酸酯水解稳定性差的问题，同时分子结构中含有氨基、丁氧基等活性基团。

Experimental results show that the improved algorithm can remarkably improve the convergent speed and calculational precision, and implement the reactive power and voltage control more efficiently.

通过算例分析表明，改进的算法能够显著的提高收敛速度和计算精度，有效的实现电压的无功控制。

It is a natural chiral compound with three chiral carbon atoms and a reactive carbo- xyl group. Like some natural drugs, it has a aromatic diterpene structure with three rings.

它是含有三个手性碳原子的天然手性化合物，有一个反应性官能团——羧基，具有许多天然药物都具有的芳香型三环二萜结构。

According to Wurtz reaction, if we can control solvothermal reactive condition to make the four C-Cl bonds in the carbon tetrachloride broken incompletely, according to the mechanism of Wurtz reaction, some kinds of free radicals or carbonium ions will be produced in solvothermal condition.

那么，如果控制反应条件，使四氯化碳等小分子碳氯化合物中的氯原子不完全脱掉，根据Wurtz反应机理，反应体系中将产生大量的碳氯自由基或碳正离子，它们在溶剂热条件下按照一定的生长规律进行组合，必将生成大量的多氯代多环芳香化合物。

The catalytical performance of oxidative coupled reaction of methane is evaluated in a mini fixed bed reactor. The effects of reactive condition on catalytical performance are investigated. The structure of the catalysts was characterized using XRD.

在微型固定床反应器中对催化剂的甲烷氧化偶联反应性能进行了评价，考察了反应条件对催化性能的影响，采用XRD对催化剂的结构进行了表征。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。