The tattle unifies in recent years study on the synthesis of cinnamate of the status quo and application prospect,the use of activated carbon as carrier of phosphotungstic heteropoly acid catalyst for catalytic synthesis of cinnamic acid ester had a preliminary inquiry,and the results were satisfactory.

中文摘要：本文結(jié)合近幾年合成肉桂酸酯的研究現(xiàn)狀及應(yīng)用前景分析性生一级录像20分钟免费，采用磷鎢雜多酸作催化劑活性炭為載體催化合成肉桂酸系列酯進(jìn)行了初步探究人人操人人干干人人操人人，并且結(jié)果令人滿意在线免费看avav。

In other words, the results novelty broke the conclusion in the pervious reports that combustion synthesis can't occur once Fe content in Fe-Ti-C system is more than 60wt%, and gave more engineering meaning to combustion synthesis of iron-based composites.

而這正是本研究的創(chuàng)新點(diǎn)之一国内偷拍人妻，即打破了前人研究所得出的"Fe-Ti-C體系中Fe含量超過(guò)60wt％就不能實(shí)現(xiàn)燃燒合成"的界限，從而使Fe-Ti-C體系燃燒合成制各鐵基復(fù)合材料更具有工程意義538视频在线播放。

Synthesis capability and synthesis condition Ectoine (a complemental solute of osmotic pressure) from the SL21 strain were studied.

研究了中度嗜鹽菌SL21的滲透壓補(bǔ)償溶質(zhì)的生成及生成條件色窝窝视频在线视频精品。

Direct digital synthesis technology promotes frequency synthesis development quickly, although, it now be restricted by it's connatural spur characteristic.

直接數(shù)字頻率合成技術(shù)推動(dòng)了頻率合成領(lǐng)域的高速發(fā)展，但固有的雜散特性極大的限制了其應(yīng)用發(fā)展av在线视屏。

Experiments on purification technologies for the conversion of cornstalk biomass into the industrial product were made to produce cornstalk gas in the down-flow fixed by the gasifier. The experiment focused on the technical procedures for deoxygenation. catalytic cracking of tar, hydrogenation, etc. Quality straw syngas was produced for methanol synthesis. The catalysis of methanol synthesis for the production of cornstalk syngas was earned out in a tubular-flow integral and isothermal reactor under the pressure of 5MPa over Cu-based catalyst C301 (particle size: 0.833mm×0.351mm), a catalyst made in China. Thirty-three sets of test data were obtained.

為了實(shí)現(xiàn)秸稈類生物質(zhì)合成燃料甲醇的工業(yè)轉(zhuǎn)化亚洲欧洲一区，有效利用生物質(zhì)能，對(duì)下吸式固定床氣化爐產(chǎn)生的低熱值玉米秸稈燃?xì)膺M(jìn)行除氧香蕉A片、分解焦油和配氫等純化試驗(yàn)，制備出合成甲醇的優(yōu)質(zhì)秸稈合成氣91精品在线观，在直流流動(dòng)等溫積分反應(yīng)器中欧美中文字幕第一页，使用國(guó)產(chǎn)C301銅基催化劑，催化劑粒度為20~40目(0.833mm×0.351mm)特级一级黄片，在5MPa反應(yīng)壓力下好男人社区WWW资源，對(duì)玉米秸稈合成氣進(jìn)行催化合成甲醇試驗(yàn)研究，獲得33套試驗(yàn)數(shù)據(jù)精品无码一级毛片。

The description should contain a diagrammatic flow chart of the whole synthesis and a written statement for each step of the synthesis.

有關(guān)描述應(yīng)當(dāng)包括整個(gè)合成過(guò)程的流程圖以及每一合成步驟的說(shuō)明）少妇人妻无码专区免费视频。

Thenew route has some advantages such as simple operation, inexpensive materials andbetter yield compare to other synthesis routes.The synthesis route is showed as follows. First,-2-chloro-3-phenylpropionic acid is synthesized from L-phenylalanine by diazotization.

在參考大量文獻(xiàn)的基礎(chǔ)上，我們?cè)O(shè)計(jì)了一條新的合成路線三级片91，和其它合成路線相比較本路線具有操作簡(jiǎn)單午夜精品久久久久久三级、原料易得、收率較高等優(yōu)點(diǎn)国产中文亚洲日韩欧美。

The article includes three parts. The first, a steroselective and regioselective synthesis of digitoxin with glycosyl ortho-alkynylbenzoates as doners. The second, synthesis of different length chain of L-fucose with a SO3Na group in the position of C-2 hydroxy.

本文工作主要包括三部分內(nèi)容国模无码，分別為采用全新發(fā)展的一種鄰炔基苯甲酸酯的糖基供體進(jìn)行地高辛的全合成并與常規(guī)的Schimidt供體及三氟亞胺酯供體進(jìn)行結(jié)果比較；合成不同長(zhǎng)度的2位硫酸化的巖藻糖糖鏈在线视频黄片免费观看；對(duì)現(xiàn)有的合成伏格列波糖的一條合成路線進(jìn)行工藝優(yōu)化国内偷拍第三页。

In this design, we used the digital direct synthesis method to complete the frequency synthesis.

本設(shè)計(jì)中，我們采用了數(shù)字直接合成的方法來(lái)完成頻率合成欧美精选视频hh。

It mainly studys approximate engineering synthesis algorithm about effective cross section area of valve, Sa, which synthesis by geometrical cross section areas of restrictor in valve flow channel.

重點(diǎn)研究了由閥流道節(jié)流口幾何截面積合成閥有效截面積 Sa 的近似工程合成算法女同一区二区。