助手标题
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
共[49]条 当前为第21条到40条
 

相关语句
a liquid
    In this paper, a liquid paraffin as oil-phase is introduced into the system which is called twoliquid phase fermentation system. The yield of penicillin is enhanced by 0. 2 to 0.5 times at two percent oil fraction. The theoretical explantion for this fact is given based upon the experimental data measure for volumtric oxygen transfer coefficients (K_La) and on physical and chemical properties of both oil and aqueous phases.
    以液态烷烃为油相对双液相发酵系统进行了研究,通过对体积溶氧系数K_La及油相与水相理化性质的测定,对油相的加入提高发酵能力作了初步解释,并通过青霉素发酵,初步确定了油相体积分数为0.02L/L时可提高青霉素生产能力。
    A liquid paraffin as oil phase was added to penicillin fermentation process to increase medium oxygen transfer.
    以一种液态烷烃为油相,将其引入青霉素发酵过程以提高氧的传递。
    Under the function of ultrasonic infiltration, a liquid metal can permeate into a particulate perform or can be mixed with the particulates homogeneously.
    液态金属在超声作用下能渗入颗粒预制件中或与颗粒均匀混合。
    A liquid organic borate crosslinker, SD2 2, is developed for various plant gum fracturing fluids (FLs). The synthesis and physical characteristics of SD2 2 are described briefly. Six plant gum/SD2 2 FLs are formulated from HPMoyu, HPTQ, HPLJ and HPG and the changes with time in apparent viscosities of these gelled FLs at 80℃ are investigated.
    本文简介了液态有机硼交联剂SD22的合成和物理特性,发表了用SD22交联的4类6种植物胶(改性魔芋胶、改性田菁胶、改性龙胶、3种改性瓜尔胶)压裂液的配方和80℃粘时数据。
    Through a discussion on 9Ni steel welding of a liquid ethylene storage tank of 10000 m3 in Yang Zhi Petro-chemical Works (See 《petroleum Engineering Construction》 Serial No. 131),welding rod and welding process of 9Ni steel spherical storage tank,this article puts forward some existing and easy-neglected problems and soluton. Futhermore it presents proposal on selection of welding material and its application.
    通过对扬子石化9Ni钢液态乙烯1万m3储罐焊接(《石油工程建设》总131期已经报道)和9Ni钢球形储罐焊接所用焊条、焊接工艺的讨论,提出一些实际存在而容易被忽略的问题和对策,进一步对9Ni钢制球罐焊材的选取和使用提出了建议。
    Assume that the sea bottom is a liquid layer over a porous elastic solid halfspace, using the concept of wave impedance, the phenomenological formula of the reflection coefficient at the liquid layer surface is derived.
    假设海底为一液态层复盖一孔隙弹性固体半空间,用声阻抗的概念,导出了其上的声反射系数的唯象公式。
    A liquid penetration method for Nb/20Cu composite fabrication is presented. The microstructure and the properties of the Nb/20Cu composite are also investigated in detail. The results show that the electrical and thermal conductivities, oxidizationresistance and mechanic properties of Nb/20Cu are better than those of pure Nb made by powder metallurgy.
    研究了金属Nb液态渗Cu制备复合材料的方法,并通过对Nb/20Cu复合材料的组织分析和性能研究,确认Nb/20Cu复合材料比纯铌粉末冶金材料的力学、电学、热学和抗氧化性能均有所提高,从而为改善钝铌制品的使用性能提供了试验依据.
    The preforms adapted were carbon felt disks (160 mm od×80 mm id×10 mm thick of each),which have been densified in a liquid carbon source. The liquid precursor used in the present work was composed of CYH and KEE. The disks were heated by radiation which could create an inside out thermal gradient and immersed in liquid precursor in a water cooled chamber.
    预制体为环形炭毡制件(160 m m ×80 m m ×10 m m ),以液态低分子有机物( C Y H 和 K E E)作炭源前躯体,将预制体浸泡在液体炭源前驱体中,利用辐射加热,在预制体范围内造成由内而外的温度梯度。
    The measurement of the running result indicates that its efficiency achieves 90 to 93 percent when using in a liquid state pulverized coal fired boiler and 92 to 95 percent when using in a solid state pulverized coal fired boliler.
    运行测试表明 :用于液态排渣煤粉锅炉 ,其除尘效率达到 90 %~ 93% ; 用于固态排渣煤粉锅炉 ,其除尘效率达到 93%~ 95%。
    C/C composites with density as high as 1.74 g/cm 3 were obtained within 3 hours by the new process. Carbon felt disk preforms have been densified in a liquid carbon source. The liquid precursors studied in the present work include CYH and KEE.
    利用该技术 ,采用碳毡作预制体 ,以两种液态低分子有机物作碳源前驱体 ,沉积时间在 3h内 ,沉积温度在 90 0℃~ 110 0℃范围内可获得密度达 1.74g/cm3的C/C材料。
    A liquid amine ashless antioxidant HAO without phosphorus and zinc was prepared by alkylation of diphenylamine and 12 carbon iso olefin mixture, which can be applied at high temperature.
    以二苯胺和含C12 的混合异构烯烃为原料 ,通过烷基化工艺 ,研制出了适于高温条件下应用的不含磷、锌元素的液态胺型无灰抗氧剂双十二烷基二苯胺 (HAO)。
    Finally, it uses this method to realize a liquid metal molecules movement real-time simulation system.
    最后使用该方法实现了一个液态金属分子运动的实时仿真系统。
    Cell surface antigens were analysed by flow cytometry. Hematopoietic cells expanded with hematopoietic growth factors(HGFs) in a liquid culture system and the number of CD34 + cell, CFU-GM and CFU-GEMM were determined.
    将MNC加入含多种造血生长因子的培养基进行液态扩增并检测其CD34+细胞绝对数、粒 巨噬集落 (CFU GM )和多向祖细胞集落 (CFU GEMM )形成能力。
    It shows that the oil collecting film is a multilayer film when a kind of N,N dialkylacylamide is solely used to form a film to compress oil slicks on water surface, and is a transforming film or a liquid condensed film when it is blended into a solution with suitable solvents.
    表明当N,N-二烷基酰胺类物质单独成膜时获得的集油膜为多层膜 ,而当选用合适的溶剂与其配制成溶液以后 ,所成的集油膜则为转变膜或液态凝聚膜。
    A Ag/Al2O3 adsorbent for removal of arsenic from pyrolysis gas and a liquid hydrocarbon stream was prepared by impregnation.
    采用浸渍法制备以复合型的银化合物为活性组分的脱砷剂,用于裂解气及C3馏分等液态轻质烃中砷化物的脱除。
    Compared with the concentration series of seawater, the brine contains extraordinarily high amount of potassium ions, i.e., 25.96 g/L, which exceeds the amount in the seawater at the stage of potassium sedimentation, as well as the quality for comprehensive or singular utilization. Therefore,it is a liquid potassium resource of rarity both domestically and abroad.
    卤水与海水蒸发系列相比,K+含量异常高,达25 96g L,超过海水钾盐沉积阶段,也超过综合利用和单独开采品位,为国内外罕见的液态钾矿资源。
    Moreover, the following sequences for the amount of the maceral-generated liquid products: exinite(1)>exinite (2)>vitrinite. There was a liquid hydrocarbon peak for vitrinite and exinite respectively, with saturated hydrocarbon predominance.
    2各显微组分的液态烃产率均表现为壳质组>镜质组的特征,镜质组和壳质组均存在一个明显的产液态烃高峰,壳质组是煤岩中液态物质的主力贡献者,其产液态物率是镜质组的5~15倍;
    A simulation study on the formation c haracteristics of cluster structur es during rapid cooling process in a liquid metal system consisting o f 100000Al atoms has been performed b y molecular dynamics method. A cluster-type index method(CTIM)has been used to describe the structu ral configurations of various clusters.
    采用分子动力学方法,对含有100000个Al原子的液态金属系统在凝固过程中团簇结构的形成特性进行了模拟研究,并采用原子团类型指数法(CTIM)来描述各种类型的团簇结构组态.
    In this article, a low viscosity epoxy resin curing system under low-moderate temperature is acquired by adopting a liquid aromatic amine made by ourselves. The DSC analysis is used to study the curing reaction kinetics of this resin system.
    采用自制改性液态芳香胺制得一种低粘度次中温固化环氧树脂体系 ,通过不同升温速率下的固化过程DSC扫描 ,研究了该体系的固化反应动力学 ,并据其优化了体系的固化制度。
    A liquid urethane prepolymer encapped with vinyl ether groups(PUE),was synthesized and characterized.
    合成了一种液态聚氨酯乙烯基醚预聚物 (PUE)并对其进行了表征 .
 

首页上一页123下一页尾页 

 
CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社