还原

Ultrafine cobalt powder ; glycol; 1、2-propanediol; reduction ; preparation process ; abstersion ; desiccation in vacuum

超细钴粉；乙二醇； 1、2丙二醇；还原；制备工艺；洗涤；真空干燥

During the study, we improved the condensation condition of the carboxylic acid and the amine, which increased the overall yield by 9 times.

我们从哌嗪出发经取代、还原、烷基化、酰化、还原和磺酰化，共经十三步反应完成地拉韦定的全合成。

Concluded that the definition and characteristics of science and ethics, combined with some of the modern case studies to discuss key issues of scientific ethics of the study, pointing out that on the one hand to strengthen the scientific and ethical quality of scientific workers in the other hand, the urgent need for ethical guidance of mankind, from the ethical angle of reflection on science, so that science can truly benefit of mankind.

最后指出科学伦理的含义、特点和本质。结合现代的一些案例分析，讨论科学伦理研究的主要问题，指出一方面要加强科学工作者的科学伦理素质，另一方面人类迫切需要伦理的指导，从伦理的角度反思科学，使科学真正能为人类造福。还原

Methods Starting from anisole, liarozole was synthesized by Friedel-Crafts acylation, nitration, nucleophilic substitution, reduction and cyclization.

以苯甲醚为起始原料，经傅克酰基化、硝化、取代、还原、环合等7步反应得到目标化合物利阿唑。

By analyzing principle, the investigating project was primarily determined. Then experiments of leaching with hot water, precipitation arsenic by lime milk, solution arsenic by sulfuric acid, reduction, cooling and crystalling white arsenic have been carried out and the optimum conditions of every step have been obtained.

在分析基本原理的基础上，初步确定了研究方案，按照方案分别进行了热水浸出、石灰乳沉砷、硫酸溶砷、还原、冷却结晶白砷等试验，得到了各个工序的最佳工艺条件。

Yet more POWERFUL FUNCTIONS: XML forms/templates/export; HTML toolbar/menu/insert-code/export-to-Website (opt:dynamic tree)/etc; self-updating fields; template function; hyperlinked history/bookmarks/favorites lists; undo/redo; high-security encryption; image-compression; print preview; drag-drop; zoom; calendar; a multitude of import/export option; auto-save;'browser-style' hyperlinks to files, directories, WWW,email, ftp, news, phone (with autodial - inc.prefix), user-defined; etc. Import IE bookmarks and Windows shortcuts.

然而，更强大的功能： XML的表格/模板/出口；的HTML工具栏/菜单/插入代码/出口到网站/等；自我更新的领域；模板功能；超连结的历史/书签/最爱名单；还原/重做；高安全性加密；图像压缩；打印预览；拖放；变焦；日历；千头万绪，导入/导出选项；自动保存；浏览器式'的超文本链接文件，目录的WWW ，电子邮件的FTP ，新闻，电话（与自动拨号-i nc.prefix），用户定义；等进口即书签和W indows的快捷方式。

IV. The total synthesis of dehydrodiconiferyl alcohol and its dihydro-derivative The benzofuran skeleton was constructed by chemically oxidative couplingstarting from vanillin, then selective reduction with LiAI〓/〓 andhydrogenation in the presence of Pd-C followed reduction with LiAl〓respectively, to give dehydrodiconideryl alcohol and its dihydro-derivative, usefulin treating and preventing digestive system disorders, esp.

四、Dehydrodiconiferyl alcohol及其二氢衍生物的全合成以香草醛为起始原料，用化学氧化法一步建立氢化苯骈呋喃骨架，LiAlH〓／〓选择性还原以及催化加氢还原接着〓还原，分别合成了对预防和治疗消化系统疾病尤其是胃溃疡有显著效果的Dehydrodiconiferylalcohol及其二氢衍生物。

At low temperature (700℃), NO〓 emission increases considerably with excess air coefficient, at 800℃ NO〓 emission is almost independent of excess air coefficient, and at 900℃ NO〓 emission is zero indicating that this temperature is the optimal operating temperature.

稀相区出口浓度为零，密相区内NO和NO〓浓度随氧量增加而减少，说明在900℃下，氧量增加促进NH〓(i=0，1，2)对NO〓还原。

Chapter Three concerns on the "deoxidization"of black communal identity.

第三章集中论述黑人社会身份的"还原"。

Methylation production were hydrolyzed, deoxidize, then analyzed by GC-MS.

甲基化产物经酸水解、还原、乙酰化后用GC-MS联机分析。

As of Tuesday, Google's results were still censored in China.

截至周二，谷歌的搜索结果仍受中国审查。

In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.

在这一过程中，人的主体性发挥是社会有机体健康发展的灵魂。