进而

Herein, we report the enantioselective total syntheses of slagenins A-C and their antipodes. Starting from readily available ethyl -4-chloro-3-hydroxy-butanonate, elongation of the carbon chain with diazomethane, followed by oxidation of the given α-diazoketone using distilled DMD, afforded a key intermediate α-ketoaldehyde .

本文从方便易得的-4-氯-3-羟基-丁酸乙酯出发，经重氮甲烷延伸碳连、DMD氧化相应的α-重氮酮，制得α-酮醛；该化合物与尿素在氢氟酸作用下，以协同方式非对映选择性的直接构建了cis-四氢呋喃并[2，3-d]咪唑啉-2-酮双环结构，进而合成了天然产物slagenins A、B、和C的对映体。

Density Functional Theory in connection with accurate LCAO basis sets and norm-conserving pseudopotentials were used to study two issues which are (1) The Selective Functionalization of Single-Walled Carbon Nanotubes with Diazonium Radical and (2) The Molecular Dynamic Simulated IR Spectrum of Adsorbed C3H3 and I on the Ag(111) Surface.For the first, we investigated (1) NO2C6H4 direct addition (2) NO2C6H4N2 dissociative addition reaction on semiconductor (8,0), metallic (9,0)and(5,5) carbon nanotubes.

第一部分模拟的结果显示，在半导体性质(8，0)和金属性质(9，0)、(5，5)奈米碳管上，硝基苯自由基(NO2C6H4)的直接加成反应於不同导电性质的奈米碳管间不具有选择性，而硝基苯重氮化合物自由基(NO2C6H4N2)的解离吸附反应会选择性的与金属性质奈米碳管发生反应，因为在金属性质的系统中，奈米碳管於过渡态时会藉由电荷的转移来稳定过渡态的结构，进而帮助反应更快的进行。

This paper discusses the cause of chlorine ions formation in the production of sodium dichromate and its influence on production environment and quality.

本文讨论了红矾钠生产过程中氯离子产生的原因及对生产环镜、产品质量的影响，进而分析生产工艺流程中除去氯离子的有关工艺参数，将其结果应用于实际生产，使产品中的氯离子含量在0.1%以下。

Tillering in rice is one of important agronomic trait that determine grain yield. Tillering is also of developmental importance because tiller is special type of branches which is quite different from that of dicot plants. M0C1 gene can control formation of axillary meristematic tissues and tillering bud in rice, and its subsequent outgrowth.

分蘖是水稻等禾谷类作物最重要的农艺性状之一，它直接决定着水稻穗数的多少并进而影响水稻单位面积的产量；分蘖又是单子叶植物一种特殊的分枝现象，具有重要的发育生物学意义。

The "no-fly pollution, clean health", including the human body needs calcium, phosphorus, iron, carotene, ammonium acid, niacin, ascorbic acid and various vitamins, has a high nutritional value, which in the human body VB17 can degrade to form benzaldehyde, and then into a acid and ammonium hydride, can inhibit cancer cells die and break, with a clear role in anti-cancer Cancer

该产品"无蚊蝇污染，干净卫生"，含人体需要的钙、磷、铁、胡萝卜素、硫铵酸、尼克酸、抗坏血酸及多种维生素，有很高的营养价值，其中VB17在人体内可降解成苯甲醛，进而转化成铵得酸和氢化物，能抑制和休死癌细胞，有明显的防癌治癌作用

This article focuses on the electrostatic interaction with the media, dielectric analysis of the type and nature of the understanding of dielectric polarization mechanism, then master dielectric and the interaction of the electrostatic field and the interaction energy, so as to the development of new dielectric material fight Solid theoretical foundation.

本文主要着重于静电场与介质的相互作用，分析电介质的种类与性质，了解电介质的极化机制，进而掌握电介质与静电场的相互作用力与相互作用能，从而为开发新的电介质材料打好坚实的理论基础。

EPDM (ethylene propylene diene monomer) rubber development improved rapidly in recent years, applied widespread in the industry.

中文摘要 EPDM (ethylene propylene diene monomer)橡胶近年来由於发展迅速，进而广泛的被工业界所应用。

The present invention relates to a rubber composition including 100 parts by mass of a rubber component including a natural rubber and/or a diene rubber and 0.5 to 80 parts by mass of a biodegradable aliphatic polyester.

本发明涉及相对于含有天然橡胶及/或二烯烃系橡胶的100质量份橡胶成分，进而在0.5～80质量份的范围内含有生物降解性脂肪族聚酯的橡胶组合物。

Secondly, the thesis introduced the current situation of cooperation between bank and insurance-company in our country; analyzed objectively some questions, such as product innovation, external supervision and backward in technique, analyzed the main factor that restricted its development; And then, through the analysis about bank, insurance company, public demand and accession to the WTO, the diesis drew the conclusion that developing bancassurance met the need of bank, insurance company, and customer, and was a rational choice after entering into WTO for our country; our country had already been qualified to develop it.

其次，论文介绍了我国银保合作发展的现状；客观分析了我国银保合作存在的产品创新不足、技术落后、外部监管不完善等问题，并分析制约其发展的主要因素；进而，通过对银行、保险公司、公众需求及加入WTO等方面的分析得出我国发展银保合作是银行、保险公司、客户实现"三赢"的需要，是我国入世后的理性选择；而且，我国已经具备了发展银保合作的条件。

The results show that differential game can be transferred to the matrix form of the game, and players' equilibrium strategies can be solved simply through system dynamics simulation.

结果表明，通过系统动力学模拟可将微分博弈转化为博弈的矩阵形式，进而方便地求出局中人均衡策略。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。