查询词典 hydrogen arsenide

Q9PW9 was applied to the oxidation of benzyl alcohol with hydrogen peroxide as an oxidant and high efficient catalytic performance was achieved.

以H2O2水溶液为氧化剂，在氧化苯甲醇制备苯甲醛反应中，发现该催化剂具有良好的催化活性。

The oxidation of benzyl alcohol produces benzoic acid and benzaldehyde selectively with the amounts of hydrogen peroxide varying.

苯甲醇氧化时，随过氧化氢加入量的不同，可以选择性地给出苯甲醛和苯甲酸。

The process includes the following steps: dissolving bromine in halogenated hydrocarbon, dropping the bromine solution into reactant system comprising pentabromo toluene, halogenated hydrocarbon, free radical initiator and hydrogen peroxide at 50-65 deg.c, and heating to 60-78 deg.c for reflux reaction until the reactant system becomes transparent; filtering the resultant to obtain solid product, washing with carbon tetrachloride and water separately and vacuum drying to obtain pentabromo benzyl bromide.

具体步骤为：将五溴甲苯、卤代烃、自由基引发剂和过氧化氢组成的反应体系加入到三颈瓶中，将0.07～0.1mol的溴溶于50ml卤代烃配成溶液，在50-65℃温度下滴加到反应体系中，滴加时间为50-70分钟，然后升温至60-78℃温度下回流反应，至反应体系逐渐变透明，且不再产生气泡时，将所得产物过滤，得到固体产物，分别用CCl 4 和水洗涤，真空干燥，即得到五溴苄基溴；其中，五溴甲苯与溴的摩尔比为1∶0.7-1∶1.0，溴与过氧化氢的摩尔比为1∶1.0-1∶1.4，自由基引发剂加入量为五溴甲苯重量的1-10％，卤代烃的加入量为反应体系体积的40％-100％，所用溶剂可以直接进行下一批反应，不需要更换溶剂或蒸馏提纯。

While the up-flow reactor is the key equipment in medium- and high-consistency clean bleach process, including oxygen delignification、hydrogen peroxide bleach、chlorine dioxide bleach、 ozone bleach, the flow characteristics of the medium consistency pulp in up-flow reactor have significant impact on the quality and the efficiency of the bleach reaction. In this work, a series of equipments are designed and manufactured for a systematic and deep study on the flow characteristics of the medium consistency pulp in up-flow reactor.

而升流式反应器是中高浓清洁漂白工艺（包括氧气脱木素、过氧化氢漂白、二氧化氯漂白、臭氧漂白等工艺）中的大型关键设备，中浓纸浆在升流式漂白反应器中的流动特性与漂白反应的质量、效率都有密切关系，因此本研究自行设计和制造了相关的实验设备，对中浓纸浆在升流式反应器中的流动特性进行了较为系统、深入的研究。

The bright, blue-white areas show newly formed stars surrounded by clouds of hydrogen, which are colored pink.

光明的，蓝的白色区域表明，新成立的星级包围云氢，这是色粉红。

On-line, closed-loop, major automatic control system such as boiler controls,flue gas scrubber controls, and many minor sub-loop controls, such as temperature controls for turbine lube oil and generator hydrogen,etc.

在线一闭环主自动控制系统，比如锅炉、烟气除尘器的控制，许多次要子环的控制，如对汽机润滑油和发电机氢气的温度控制等等。

The results show that the hydrogen yield was significantly increased when the oxygen removal process by boiling of the culture was not applied.

结果表明去除煮沸驱氧过程可以大大提高Ethanoligenens sp B49发酵糖蜜产氢的性能和糖蜜的氢转化率。

The instrument can be used for the determination of total sulfur, total chrorine, trace water, bromine number and bromine index, mercaptan and hydrogen sulfide, chloride ion, salt content and chemical oxygen demand.

仪器可广泛用于各种样品中总硫、总氯、微量水分、溴价和溴指数、硫醇和硫化氢、氯离子和盐含量以及化学需氧量等的测定。

Low levels of the crust, melting point 3180 ℃, boiling point 5627 ℃, the relative density of 2053, the external F electronic structure 5d56s2, reaction time will be lost 1-7 electronic, but also can capture an electron, so oxidation number of 0,± 1, 2 , 3, 4, 5, 6 and 7, rhenium with the halogen in the fluorine, chlorine, bromine reaction halides dissolved in water, can dissolve in nitric acid and ammonia hydrogen peroxide solution, but do not dissolve in hydrochloric acid.

地壳中含量很低，熔点3180℃，沸点5627℃，相对密度2053，外围F 电子结构5d56s2，反应时会丢失1—7个电子，也可捕获一个电子，所以氧化数为0、±1、＋2、＋3、＋4、＋5、＋6和＋7，铼能与卤素中的氟、氯、溴反应生成溶于水的卤化物，能溶于硝酸和含氨过氧化氢等溶液，但不溶于盐酸。

Shenzhen high-wing Technology Co., Ltd. is mainly engaged in three-color phosphors and LED decorative lighting products and sales. 1992 high-wing technology trichromatic phosphors begin mass production, the company trichromatic phosphors in the domestic production industry, the first in the use of nitrogen, hydrogen precursors to protect the production of ultra-high-temperature tunnel furnace trichromatic green powder and blue powder, the first technology would be Jet Milling for phosphor production, enhance production of the first color phosphor of bimodal powder blue. High-wing technology in 2004 began producing LED lighting products have been developed, including LED string lights, cup lights, bubble lights, tube lights, LED lights×, LED signs, lights, cast ray lamp, underwater lamp, rainbow tubes and LED flashlight series of applications and achieve bulk export the European Union, the United States, Australia, Africa, Asia and other countries, in the domestic market has volume applications.

深圳市企荣科技有限公司主要从事三基色荧光粉和LED装饰、照明制品的生产和销售。1992年企荣科技开始批量生产三基色荧光粉，公司在国内三基色荧光粉生产行业中最先使用氮、氢气体保护超高温隧道炉生产三基色绿粉和蓝粉，最先将气流粉碎技术用于荧光粉的生产，最先生产出提高荧光粉显色性的双峰蓝粉。2004年企荣科技开始生产照明光源LED的相关产品，现已自主研发了包括LED串灯、杯灯、泡灯、管灯、LED字灯、LED指示牌灯、投光灯、水底灯、彩虹管及LED手电筒等系列应用产品，并已实现批量出口欧盟、美国、澳洲、非洲、亚洲等国家，在国内市场已经批量应用。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？