As a new type of synthesis process of materials, self-propagating high-temperature synthesis rose at the end of 1960 s to get compounds in a short time by means of the combustion heat generated by reaction itself.

中文摘要：自蔓延高溫合成是二十世紀六十年代末興起的材料合成新技術，其顯著特點是利用化學反應自身放熱瞬間完成其它方法無法實現的材料的合成。

Having collected and compressed syllables which is basic data used to synthesis speech including pronunciations of whole Chinese word by tools, the system can be used to synthesis speech output from text input by using multiplex table scanning and speech coding API functions.

使用相關工具，采集并壓縮包含所有漢字發(fā)音的音節(jié)數據作為合成語音樣本中文字幕在线看，使用多重查表技術以及相應語音解碼API函數，將文本轉換成合成語音播放麻豆91在线亚洲欧美中文字幕。

As one of the most important osmoregulation actor, firstly,Proline plays a keyrole in the osmotic potential adjustment in plant cells. Secondly, Proline can preventNaCl from damaging the structure of biomacromolecule in cells. Thirdly, the highdissolubility and non-rejection capability of Proline can enlarge the solution volumnof the cell, so the concentration of salt will be diminished in cytoplasm and the saltstress will be relieved. Forthly, the accumulation of Proline could prevent thedehydrolysis from sap cavity in cytoplasm. Fifthly, the synthesis of plant chlorophyllwill be diminished under the salt stress, but the Proline can provide request ofchlorophyll synthesis.

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It is reviewed the applications of Betti base and its derivatives as chiral ligands in asymmetric synthesis, chiral auxiliary synthesis and resolution.

本文綜述了近年來Betti堿及其衍生物在不對稱合成日韩一精品视频在线观看、手性輔助合成以及拆分中的應用456久久影院一区二区，并對未來Betti堿及其衍生物的應用作了展望。

The thesis here described the chiral resolution of Betti Base and the synthesis of their derivatives, as well as their applications as chiral ligands in asymmetric synthesis.

本文選擇了Betti堿及其手性衍生物為研究目標毛片基地无码专区久久，完成了Betti堿的拆分在线观看黄毛片、手性配體結構的合成，以及它們在催化不對稱合成中的初步應用亚洲无码淫乱视频。第一章主要解決了Betti堿1的拆分問題影音资源在线观看。

The synthesis and properties of metal-carbyne complexes is always a hot topic in the research field of organometallic chemistry since the first synthesis of transition metal complexes with a formal metal-carbon triple bond reported by E.O.

自從1973年E.O.Fischer合成了第一個含有金屬碳叁鍵的金屬卡拜化合物以來清风阁免费视频网站A片，金屬卡拜化合物的合成和反應性能一直是金屬有機化學中的前沿研究領域之一。

Synthesis of polyester polyol of sebacic acid series;2. Study on catalyst used to synthesis of polyester polyol ;3. A series of polyester-based thermoplastic polyurethanes elastomer were prepared from polyester polyol ,diphenylmethane-4,4'-diisocyanate and 1,4-butanedio by one-step process.

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Knowledge of synthesis methods, reactivities, reagents, protective groups and much more is best acquired - and retained - by way of detailed analysis and processing of complex synthesis paths.

合成法的知識， reactivities91看电影亚洲精品，試劑欧洲免费视频区，保護組和更多被最好獲得-并且保留-作為詳細分析并且復雜綜合道路的處理。

This paper presents a description of the brief synthesis of hexanoic acid 2-ethyl ester by new methods and its application. It takes two steps and 4.5 h to complete the synthesis of it.

己酸二乙氨基乙醇酯(DA 6)由美國科學家于20世紀90年代初首先發(fā)現的一種新型植物生長調節(jié)劑在线一区免费不卡，具有高活性强奸美女视频网站，低毒無污染、可與其它農化物質兼容的特點欧美性爱资源网，它的合成與應用研究正日益受到人們的重視[1～7]www.射。

Synthesis of methylene-4,4'-di catalyzed by zinc oxide Various metal oxide were investigated in the synthesis of methylene-4,4'-di from ethyl carbamate, and a serious of ZnO/SiO2 catalysts were prepared by deposition-precipitation method.

氧化鋅為催化劑合成4，4'-二環(huán)己基甲烷二氨基甲酸乙酯以氨基甲酸乙酯和4欧美最猛性XXXXX69，4'-二環(huán)己基甲烷二胺的反應體系為研究對象国产黃色在线观看，在考察多種金屬氧化物活性的基礎上，使用沉積沉淀法制備了一系列硅膠負載氧化鋅催化劑亚洲精品中文字幕区，并對其催化性能進行了研究激情黄页免费网站。