查询词典 vicinal

Interaction between vicinal supramolecules, distance of chiral centers between host and guest molecules and acetone molecule inclused are not important for the chiral recognition between host and guest molecules.

主客体之间手性中心距离的远近以及溶剂丙酮分子等因素，不是影响主客体之间的手性识别的关键因素。

Then according to the vicinal economic development objective and resources condition,this paper makes the strategic program of development and exploitation rationally on coal resource in order to ensure the need of sustainable and rapid development of Inner Mongolia\'s national economy.With the study on the development and exploitation strategy of Inner Mongolia\'s coal resource from the perspective of Space Economics,it\'s favorable to make certain the faced environmental problems on coal resource development of Inner Mongolia.

在世界经济一体化，资源全球化的趋势日益加深的今天，内蒙古为实现经济的可持续发展及建设小康社会的任务，必须认真分析本地区资源可供性形势，根据本地区的经济发展目标和资源状况，合理进行煤炭资源开发利用战略规划，以保障内蒙古国民经济可持续高速发展的需要。

By analysing the archaeological data, the kilns of Ceramics Bureau is in the vicinal area of Hutian kiln and Zhushan Ming Imperial Factory.

从目前掌握的考古资料看，磁局的窑场大概在湖田窑和珠山明御厂一带。

In order to solve the problems with heavy turpentine, such as complex constituents, vicinal boiling point, difficult to separation and hard to comprehensive utilization, the α-santalene was converted to natural structure similar product α-santalol by light-oxidize reaction, and caryophyllene epoxide was obtained at the same time.

摘要为了解决重质松节油组成复杂、沸点相近导致分离困难、难以深加工综合利用等问题，利用光氧化反应技术，将其中的α-檀香烯转化为与天然α-檀香醇结构相似的檀香型新香料－α-檀香烯醇，同时可得到环氧石竹烯。

This may be overcome, as suggested in the present investiga- tion by assuming that the vicinal actions are due to the interactions of various chemical bonds in the molecule with the chromophoric electron.

指出旋光度應由分子中各化學鍵，而不是分子中各原子對於生色團電子的微擾作用來計算，兩者的主要不同點在於是否考慮鍵的多極矩。

ConclusionThe ganglioneuroma has some characteristic CT appearance that can improve the accuracy of diagnosis. The multilayer spiral CT can show the relationship between tumor and peripheral blood vessel and vicinal structure clearly. It can provide more reference information for clinic and operation.

结论节细胞神经瘤有一些特征性的CT表现，有助于提高节细胞神经瘤诊断的准确性；多层螺旋CT能清晰显示肿瘤与周围血管及邻近结构的关系，可为临床及手术提供更多的参考信息。

The surface atomic structures are observed on St(100) vicinal surface for miscut angles of 0.5°and 4.5°by UHV-STM and LEED.

本文利用超高真空STM和LEED装置观察了错切角为0.5°和4.5°的Si（100）微斜面的原子结构。

The osmium-catalyzed asymmetric dihydroxylation of olefins provides one of the most effective methods for the preparation of vicinal diols. Almost all kinds of olefinic substrates can be transformed to the corresponding diols by means of AD reaction. The chiral osmium catalyst is generated in situ by the chiral ligand complexing with OsO〓 in the reaction.

手性锇催化剂催化的烯烃不对称二羟基化反应是合成手性邻二醇最有效的途径之一，可以将几乎所有类型的烯烃转变成相应的手性邻二醇，因此广泛地应用于药物、天然产物以及精细化工产品的合成。

Expanding pinacol reductive coupling reaction into asymmetric one with both diastereoselectivity and enantioselectivity may lead to its application in synthesising medicaments and biologic active compounds with structure of vicinal diol. Asymmetric pinacol coupling reaction is also the most compact and effecient method in synthesizing chiral ligands or chiral auxiliary with C〓 symmetry.

将这一反应发展成为既有高度的非对映选择性，又有高度对映选择性的不对称偶联反应在合成许多含有手性邻二醇结构的药物或生物活性物质将有更重要的应用，同时不对称Piancol偶联反应也是合成C〓对称性的邻二醇多用途手性配体或手性助剂的最为简捷有效的方法。

Seven major methods and their reaction characteristics for the synthesis of primary vicinal diamines starting from epoxides, and alkenes etc.

文摘：详细综述了从环氧化合物、烯烃等为起始原料合成一系列一级邻二胺的七条主要路线，并比较了各条反应路线的特点。

Panorama Many people are dancing in a large sitting room.

在一个大客厅里，许多人在跳舞。

We fully understand how a microwave oven cooks food, it is first necessary to talk ...

我们充分理解一个微波炉煮的食物，这是首先要谈。。。