查询词典 ionic

In this paper,the catalysis and mechanism of ionic liquids for direct synthesis of dimethyl carbonate is studied.

考察了多种离子液体对直接合成碳酸二甲酯反应的促进作用，并对机理作了分析。

Furthermore, and more importantly, the carboxylate group makes an immobilization of 2 in an ionic liquid very efficient.

此外， 以及更重要的是，羧酸组作出了固定化 2 ，在1离子液体中非常有效率。

This paper reviews advances in organotin complexes with their antitumor activity in recent years,especially two kinds of new organotin,ionic organotin compound and organotin carboxylate compound,and we also look forward their future development.

介绍了近年来国内外有机锡化合物在抗癌活性方面的研究进展，尤其是离子型有机锡化合物和含有N原子的有机锡羧酸酯类化合物，并对其发展前景进行了展望

The renowned Athens Acropolis (5th century BC), atop a craggy walled hill, is home to four main edifices－the Propylaea , Parthenon, Erechtheum (Ionic temple noted for its caryatid porch), and Temple of Athena Nike－all built from white marble plentiful in the region.

著名的雅典卫城（Athens Acropolis，建于西元前5世纪）位于陡峭的山岗上，有四座重要建筑物：卫城山门、巴特农神庙、厄瑞克底翁庙（Erechtheum，以女像柱〔caryatid〕闻名的爱奥尼亚神庙）和雅典娜胜利神庙，都是以该地区生产的白色大理石筑成。

32Suaeda salsa plants grown in the intertidal zone and high salinity soils at elevation and land far from the seaside of the Yellow River Delta were used to study the relations of leaf succulence to ionic contents in cell sap and in saline soils.

以黄河三角洲内地重盐碱地和海边潮间带两种生境下的盐地碱蓬为材料，比较叶片肉质化及叶片细胞液和土壤中离子浓度等内外因素，探讨影响盐地碱蓬叶片肉质化的主要因素。

That temple was Doric on the exterior, Ionic on the interior, and incorporated a Corinthian column, the earliest known, at the center rear of the cella.

那座神庙是多立克柱式在外部，爱奥尼柱式在内部，并纳入了科林斯柱式，是已知最早的神庙。

In chapter I, we introduce the Jordan-Wigner transformation in detail, and illustrate its applications with three examples: the one-dimensional S = 1 XXZ model; the bilinear-biquadratic SU(2) invariant S = 1 chain; and the ionic Hubbard chain in the strong coupling limit. In chapter II, we review the S = 1/2 transverse Ising chain in detail.

在变换后发现隐藏在自旋为1的系统里自旋为1/2的SU(2)对称性及广义的U(1)规范对称性；(3)通过将推广的强耦合极限下的一维离子型Hubbard 模型变换为SU(3)反铁磁Heisenberg 模型，严格论证了离子型Hubbard 模型从能带绝缘体到莫特绝缘体的转变区域中自发二聚化绝缘体铁电性相即键序波相的存在。

Explain this one chemical diction is in ionic equation from this the significant position in chemical education.

由此说明离子方程式这一化学用语在化学教学中的重要地位。

Alkylations of benzene with dodecene and/or chloromethane in the room temperature ionic liquid 1-methyl-3-butylimdazole chloride-aluminium chloride as catalyst have been investigated with high conversion and selectivity.

首次研究了在氯铝酸室温离子液体系中二甲苯与苯乙烯的烷基化反应制1-苯基1-二甲苯基乙烷及其衍生物。考察了离子液体催化剂量和反应条件的不同对产物组成及副产物数量的影响。

Results The diagnostic accuracy of cut film with conventional AP and lateral views was 80.5%, the diagnostic accuracy of cine film with angulated views was 90.0% and the diagnostic accuracy of DSA using non-ionic contrast medium with angulated views was 96.5%.

结果用快速换片心血管造影设备和常规正侧位元投照时的儿童先天性心脏病心血管造影诊断符合率为80.5%，用电影心血管造影设备和轴位元成角投照技术时的造影诊断符合率为90.0%，采用数字减影心血管造影设备，轴位成角投照技术和非离子型对比剂时的造影诊断符合率为96.5%。

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。