查询词典 cleaning agent

PEG4000-6000 can be used as groundmass and lubricant in medicine and cosmetic industry to modify viscosity and melting point. They are used as lubricant and cooling agent in rubber and metal process industry, dispersant and emulsifier in pesticide and pigment industry, antistatic agent and lubricant in textile industry.

PEG4000-6000在医药、化妆品工业中用作基质，起调节粘度、熔点的作用，在橡胶、金属加工工业中作润滑剂、冷却剂，在农药、颜料工业生产中作分散剂、乳化剂，纺织工业中用作抗静电剂、润滑剂。

My company professional sales agent around the world famous electronic components, the main agent brand has: Japan TDK, RUBYCOM, Korea HANSE, such as Taiwan SEI.

我公司专业代理销售全球各名牌电子元器件，主要代理品牌有：日本TDK、RUBYCOM、韩国HANSE、台湾SEI等。

Surface modified nano-sized mgnesium hydroxide was prepared by direct precipitation method with magnesium nitrate hexahydrate and sodium hydroxide as raw materials,and sodium fatty alcohol polyoxyethylene ether carboxylate as modifying agent.The optimum dosage of modifying agent was 0.2% of the mass of magnesium hydroxide,which was confirmed by sediment volume experiment.Modified and unmodified samples were characterized by fourier transform infrared spectroscopy,X-ray diffraction,transmission electron microscope,and tap density test.

以六水硝酸镁、氢氧化钠为原料，脂肪醇聚氧乙烯醚羧酸钠为改性剂，采用直接沉淀法一步合成改性纳米氢氧化镁，用沉降体积实验确定改性剂的最佳用量为氢氧化镁质量的0.2%，通过红外光谱、X射线衍射、透射电镜、表观密度对改性前后的样品进行表征。

It's essential that you have a real estate agent working for you as the buyer, rather than relying on the seller's agent for the house you want to buy.

这是重要的是你有一个真正的地产代理工作对你作为买方，而不是依赖於卖方的代理商，您要购买的房子。

Aimed at the difficulty of heavy oil development and the high price of general surfactant as emulsifying agent,the probability of sodium humate as emulsifying agent was discussed.

针对稠油油藏开采难度大，采用常规乳化用表面活性剂费用高的现状，研究廉价的褐煤腐植酸钠作为稠油乳化剂的可能性。

The LAB series bonding agents (modificating of alcohol amine complexing with boron trifluoride),the hydantoin and triazine series bonding agent BA603 and the borate ester bonding agent BAG-5 can effectively raise the mechanical properties of the high-energy four groups HTPB propellant when complexing with MAPO,but they can not meet the require- ments of the engine use.

改性醇胺和三氟化硼的络合物LAB系列键合剂、海因三嗪类键合剂BA603与有机硼酸酯键合剂BAG-5在与MAPO复配用于高能丁羟四组元推进剂中，能有效提高推进剂力学性能，但都不能满足发动机使用要求。

The invention uses benzene carbonic acid as raw material, uses hydrogen gas as reducing agent, and uses ZnO and CeO2 as main accelerating agent. In solid-bed reactor the invention carries out hydrogenation reduction reaction. The reaction temperature is 340-440Deg.C, gas hourly space velocity is 600-4800h-1, hydracid mole rate is 20:1-160:1, the selectivity ratio of benzaldehyde is 99%, and the productivity is above 95%.

该方法以苯甲酸为反应原料，以氢气为还原剂，以ZnO和CeO 2 的复合氧化物为主催化剂，在固定床反应器中，进行气相加氢还原反应，反应温度为340℃～440℃，气时空速为600h -1 ～4800h -1 ，氢酸摩尔比为20∶1～160∶1，采用本发明制备苯甲醛的选择性可达99％，收率可达95％以上。

The invention uses benzene carbonic acid as raw material, uses hydrogen gas as reducing agent, and uses ZrO2, TiO2 and Y2O3 as main accelerating agent. In solid-bed reactor the invention carries out hydrogenation reduction reaction. The reaction temperature is 340-450Deg.C, gas hourly space velocity is 600-4800h-1, hydracid mole rate is 20:1-160:1, the selectivity ratio of benzaldehyde is 96%, and the productivity is above 90%.

该方法以苯甲酸为反应原料，以氢气为还原剂，以复合氧化物ZrO 2 、TiO 2 和Y 2 O 3 为主催化剂，在固定床反应器中，进行气相加氢还原反应，反应温度为340℃～450℃，气时空速为600h -1 ～4800h -1 ，氢酸摩尔比为20∶1～160∶1，采用本发明制备苯甲醛的选择性可达96％以上，收率可达90％。

The experimental results show that, the depositional rate increases with the increase of the concentrations of nickel sulfate, sodium hypophosphite and complexing agent and the pH value, and it is also concerned with the category of comlexing agent.

据油田相关资料的分析，油气管线内部介质对管道的腐蚀已经成为油气管线正常输送的很大障碍。在美国输气干线和集气管线的泄漏事故中，有74%是因腐蚀造成的。

Just under this background, this dissertation constructs agile manufacturing scheduleing model based on Agent technique and Contract Net's bidding mechanism with agent concept in computer field; under imperfect information model, dynaically optimized scheduling algorithm is put forward and optimized agile scheduling's project is obtained with the genetic algorithm.

本文正是在这种背景之下，结合智能计算领域的Agent概念，建立了把Agent技术与合同网投标机制结合构建了敏捷制造生产任务调度模型；在信息不完备模型下，提出动态调度优化算法，结合遗传算法求取敏捷调度的最优方案。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。