查询词典 liquid crystals

A selective and mild PS-DIB/ionic-liquid immobilized 2, 2, 6, 6-tetramethyl-piperidin-4-ol-N-oxyl catalytic oxidation procedure of alcohols to the corresponding aldehydes and ketones in ionic liquid BF4 at room temperature was developed. The oxidant PS-DIB was prepared via the iodation and acetylation of polystyrene resin. For the preparation of the ionic-liquid immobilized TeMPO catalyst, 4-(2, 2, 6, 6-Tetramethyl-1-oxyl-4-piperidoxyl)butyl bromide was first synthesized from TeMPO and 1, 4-dibromobutane.

将聚苯乙烯树脂先碘化再乙酰基化，制得了负载型二乙酰氧碘苯作为氧化剂。2， 2， 6， 6-四甲基－N-氧自由基哌啶醇与1， 4-二溴丁烷反应生成4-溴丁氧基－2， 2， 6， 6-四甲基－哌啶－1-氧化物，再与N-甲基咪唑发生季铵化反应，生成的溴化季铵盐与四氟硼酸钠进行离子交换制得氟硼酸型2， 2， 6， 6-四甲基－N-氧自由基哌啶负载离子液体。

A selective and mild PS-DIB/ionic-liquid immobilized TEMPO catalytic oxidation procedure of alcohols to the corresponding aldehydes and ketones in ionic liquid BF4 at room temperature was developed. The oxidant PS-DIB was prepared via Iodation and acetylation of polystyrene resin. For the preparation of the ionic-liquid immobilized TEMPO catalyst, 4-(2,2,6,6-Tetramethyl-1-oxyl-4-piperidoxyl)butyl bromide was first synthesized from 2,2,6,6-tetramethyl-piperidin-4-ol-N-oxyl and 1,4-dibromobutane.

将聚苯乙烯树脂先碘化再乙酰基化，制得了负载型二乙酰氧碘苯(diacetoxyiodo polystyrene，PS-DIB)作为氧化剂。2，2，6，6-四甲基-N-氧自由基哌啶醇(2，2，6，6-tetramethyl-piperidin-4-ol-N-oxyl，TEMPO)与1，4-二溴丁烷反应生成4-溴丁氧基-2，2，6，6-四甲基-哌啶-1-氧化物，再与N-甲基咪唑发生季铵化反应，生成的溴化季铵盐与四氟硼酸钠进行离子交换制得氟硼酸型2，2，6，6-四甲基-N-氧自由基哌啶负载离子液体TEMPO-IL。

Objective To analyse the clinical application quality of four kinds of uricase reagents:dry simple reagent of Changzheng company;liquid double reagent of Shanghai Kehua;liquid double reagent of Shanhai Shennergy-Diasys;liquid double reagent of Beijin Leadman.

目的 了解不同厂家四尿酸酶试剂即长征公司尿酸干粉单试剂、上海科华公司尿酸液体双试剂、上海申能公司尿酸液体双试剂、北京利德曼公司液体尿酸双试剂的临床应用质量方法对不同厂家尿酸试剂的精密度、线性、回收试验、干扰试验的比较以及试剂稳定性的观察。

The circular concentration can, consisting of four parts of can body, condenser, gas-liquid separator and liquid receiving barrel, is available to concentrate and distill the material liquid in such industries as pharmacy, food and chemistry and recycle the organic menstruum.

球形浓缩罐主要由浓缩罐主体、冷凝器、汽液分离器、受液桶四个部分组成，可用于制药、食品、化工等行业对料液的浓缩、蒸馏及有机溶媒的回收工艺。

Li Dongsheng: The project of group of liquid crystal model of benefit city is being started now, workshop has been built, land also is bought, the contract also was signed, project of group of liquid crystal model can realize liquid crystal and modular group unifinication, reduce intermediate segment, reduce cost, the project has begun, won't stop.

李东生：现在惠州的液晶模组项目正在启动，厂房已经建设完了，土地也买下来了，合同也签订了，液晶模组项目可以实现液晶和模组一体化，减少中间环节，降低成本，项目已经开始，不会停下来了。

IT者网站提供英文翻译,未经授权请勿转载】 On July 9, domestic head money, the TV of liquid crystal of 42 inches of LED with the smallest whole world appears on the market, this ended group of model of TV of our country liquid crystal to depend on the history of the entrance entirely almost not only, also be in a poor light to liquid crystal of sea letter LED Liu Weidong makes the same score leader of project of modular group research and development added not little " be not routine ", accepting media to interview is among them one of.

7月9日，国内首款，全球最薄的42英寸LED液晶电视上市，这不仅结束了我国液晶电视模组几乎全部依靠进口的历史，也给海信LED液晶背光模组研发项目带头人刘卫东平添了不少的"非日常工作"，接受媒体采访是其中之一。

COMAPIL-AMF25C an integrated generator controller, the motor pool protection LCD temperature hydraulic liquid crystal display, liquid crystal display battery voltage. speed liquid crystal display and operation of power generating units into a multifunctional LCD display controller parameters. and automatic button activated a hand in turmoil, with automatic start function RS232 communication interface with the PC and pass directly linked to its Remote Computer Starter Group. the following functions

COMAPIL-AMF25C是一个综合的发电机组控制器，集合了发动机保护，温度液晶显示，油压液晶显示，电池电压液晶显示，速度液晶显示和发电机组运行电力参数液晶显示为一体的多功能控制器，提供了手动荡不安启动和自动按钮，配有自动启动功能，并能通过RS232通讯接口直接与PC相联，实现其远程计算机起动机组。

An appliance for cooking food includes a receptacle for receiving a quantity of food articles to be cooked, and a sufficient quantity of cooking liquid to only partially immerse the food articles therein; a heater for heating the cooking liquid and the food articles when received therein; a paddle movably mounted with respect to the receptacle so as to be movable therein; and a periodically-reversing drive for driving the paddle back and forth in the receptacle to move the food articles therein back and forth through the cooking liquid.

一种烹调食品的装置，该装置包括：一个用于放置大量待烹调食品和足量烹调液体的容器(10)，所述食品只是部分浸在液体中；一个在装了烹调液体和食品以后对烹调液体和食品进行加热的加热器(14)；一个相对于所述容器可活动安装的叶片(15)，使得该叶片在容器中运动；以及一个定时进行翻转的驱动器，该驱动器带动叶片在所述容器中前后运动，使容器中的食品前后运动通过烹调液体。

Culture tender leaves in culture medium of MS+2,4-D1.5mg/L+30g/L suger+0.7% agar pH5.8 for 20 days in darkness at 25℃, and then subculture to induced Ⅱ-type calli. Use forceps cutting the tissue to nubble with 2mm2, and put the tissue into Agrodacterium tumefaciens LBA4404 liquid supplemented with AS 100mg/L,then, co-culture 3 days, resume 7 days in MS+2,4-D1.5mg/L+30g/L suger+500mg/L cef, take to MS+2,4-D1.5mg/L+30g/L suger+100mg/L cef+10.0mg/L kanamycin culture 20 days in darkness. After that to make it polarize in MS+30g/L suger+100mg/L cef+10.0mg/L km. The percentage of km resistant callus was reached max after infection for 45 min, the average is 29.66%. Simultaneity, tender leave callus are infected 5 min by A. tumefaciens liquid in different negative pressure, and kept on 15 min in Agrodacterium tumefaciens liquid without negative pressure. Then screen out resistant callus and obtain transgenic plants. When the negative pressure is -0.05MP the percentage of km resistant callus was reached max, the average rate is 37.5%.

将心叶接种于MS+2.4-D1.5mg/L+30g/L 蔗糖，琼脂0.7%，pH5.8 培养基中25℃暗培养20d 后继代一次，诱导产生Ⅱ型胚性愈伤组织，用镊子将其夹碎成2mm2大小的小块，置入添加100mg/L AS 的根癌农杆菌LBA4404 菌液中，侵染时间为45min，共培养3 天后，转入MS+2.4-D1.5mg/L+30g/L 蔗糖+500mg/L Cef 培养基中恢复7天，再转入MS+2.4-D1.5mg/L+30g/L 蔗糖+100mg/L Cef+10.0mg/L Km 中，遮光培养20d后，置入其MS+30g/L 蔗糖+100mg/L Cef+10.0mg/L Km 分化，卡那霉素抗性愈伤组织获得率在侵染45min 时达到最大值平均为29.66%；同时以甘蔗心叶愈伤组织材料，通过循环水式真空泵，产生负压，设定不同的负压值，在农杆菌菌液中感染5min 后，在负压条件下继续侵染15min 后，筛选出抗性愈伤组织并获得转化植株，其中在负压为-0.05 时转化率达到最大值，其卡那霉素抗性愈伤组织获得率平均为37.5%。

Silicon-oil-based magnetic liquid may be used on the occasion of higher operating ambient temperature and low change of carrier liquid viscosity with temperature,which broadens the application area of traditional magnetic liquid.

适用于工作环境温度较高、载液粘度随温度的改变要求变化很小的场合，拓宽了传统磁性液体的应用领域。

Those who loved reading were obliged to send for their books from England; the members of the junto had each a few

那些喜欢看书的人就得从英国购书，讲读俱乐部的的成员每人都有几本。

Three fourths of the earth's surface is covered with water.

地球表面的四分之三被水覆盖着。