查询词典 chemical process

Chemical methods of qualitative assay and quantitative assay to Chufa functional component According to chemical characteristics reactivity of Chufa functional component, chemical method of qualitative assay and quantitative assay to Chufa functional component were built.

功能因子的定性定量化学分析针对该功能因子的化学特征反应，实验选用硫酸显色法、可见光比色法、吸光度测定法和沉淀法对功能因子进行定性、定量分析。

Content The basic concepts of atomic, molecular and crystal structure and coordination compound structure; Macroscopic rule of chemical changes: the first law of thermodynamics, the second law of thermodynamics, the third law of thermodynamics, chemical equilibrium and the rate of chemical reaction; redox reaction

课程目标：无机化学是化工、材料、生物工程等专业学生入校后的第一门化学基础课。通过本课程的学习，使学生掌握无机化学的基本原理和重要元素及其化合物的性质、典型反应等基本知识，并为本专业的其它后继课程提供必要的理论和知识。

Companies established 27 years ago, has to stand in chemical, fertilizer production and development of accessories and has accumulated rich experience in production of gas by cutting campaign,注油Series, rod, connecting rod, crosshead, Pistons, Piston Ring , Sealed packing, aluminum pad, copper pads, and other national campaigns ISO9002 international quality management system certification, quality and stability, for users across the country to provide a large number of accessories vulnerability to China's chemical industry, chemical fertilizer, methanol production to a certain Contributions received by the user.

公司建立二十七年来，一直致立于化工，化肥配件的生产与开发，积累了丰富的经验，所生产的气伐系列、注油器系列、活塞杆、连杆、十字头、活塞、活塞环、密封填料、铝垫、铜垫等系列获得国家ISO9002国际质量管理体系认证，质量稳定，已为全国各地用户提供了大量的易损配件，为我国的化工、化肥、甲醇生产作出了一定的贡献，得到用户的。

Cryostat tank / tank temperature / low temperature tank is widely used in petroleum, chemical, electronic instruments, physical, chemical, biological engineering, medicine and health, life science, light and food, materials testing and chemical analysis, research departments, universities, businesses quality control and production departments work for the user to provide a hot and cold controlled temperature constant uniform field source, the test samples or products produced by a constant temperature test or test, but also as a direct heating or cooling and auxiliary heating or cooling of heat or cold source.

低温恒温油槽/恒温油槽/低温油槽广泛用于石油、化工、电子仪表、物理、化工、生物工程、医药卫生、生命科学、轻工食品、物性测试及化学分析等研究部门，高等院校，企业质检及生产部门，为用户工作时提供一个热冷受控，温度均匀恒定的场源，对试验样品或生产的产品进行恒定温度试验或测试，也可作为直接加热或制冷和辅助加热或制冷的热源或冷源。

The latest chemical product prices fell, demand has not really visible downstream, the short-term rise in oil prices in the channel, in which phase fluctuations, we continue to be optimistic about with anti-cyclical businesses and new materials, anti-cyclical embodies New Chemical Materials decrease in prices of raw materials is less than the decrease in prices of raw materials at the same time, the cost shift ability, to maintain price stability; civil explosive materials companies fell as a result, prices, countries can enjoy the benefits of; domestic urea production capacity excess of export disruption, high product costs, industry consolidation is inevitable, so concerned about the urea industry with technical advantages and cost advantages of urea enterprises: China Shandong Hengsheng; Although the overall situation of excess nitrogen, but because of the regional characteristics of the domestic fertilizer domestic part of the region will be in a high urea prices, the relevant listed companies will benefit from, such as the Liao Tung Chemical; compound assets as light industry, with the weak cyclical characteristics, the stability of industry profitability, industry leaders concerned about the compound: para Tian shares ; potash by the international market, short-term decline of domestic potash fertilizer prices would have difficulty, Salt Lake Potash in 2009 will be guaranteed a profit, Salt Lake Potash concern.

最新化工产品价格出现下跌，可见下游需求并未真正起来，短期石油价格处在上升通道，在这种上下波动阶段，我们继续看好具有抗周期性的新材料企业，抗周期性体现了化工新材料的产品价格下降幅度小于原料的下降幅度，在原料价格上涨同时，成本转嫁能力较强，价格维持稳定；民爆企业由于原料下跌，价格上涨，可以享受国家指导价的益处；由于国内尿素产能过剩，出口受阻，产品成本居高不下，行业整合在所难免，因而关注尿素行业内具有技术优势和成本优势的尿素企业：华鲁恒升；虽然氮肥全局过剩，但由于国内化肥的区域性特征，国内部分区域尿素价格将处于高位，相关上市公司将因此受益，如辽通化工；复混肥作为轻资产行业，具有弱周期性特点，行业盈利稳定，关注复混肥行业龙头：芭田股份；钾肥受制于国际市场，短期内国内钾肥价格恐难下跌，09年盐湖钾肥盈利将会有保证，关注盐湖钾肥。

The examples show: It is not only scientific and rational approximately, but also as referenced calculational methods of threshold quanlity of increased or emendatory chemical substance in the "Identifecation of major hazard installations "(GB18218-2000) in the future, that appliance respective of TNT equivalent method, gasoline equivalent method, methane equivalent method, methl ethyl ketone peroxide equivalent method and hydrogen sulfide equivalent method for the rhrehold quanlity in the work site and store area of volatile substance, combustible liquid substance, combustible gaseous substance, active chemical substance and poisonous substance. At the same time, Comparing with the death radius method and evaluative method of combustible, volatile, poisonous mojor hazardinstalltions, hazard grading method of hazard degree grading in the chemical factory for the major hazard installations is simplerof operation and more practical of calcutating result, and have some significance on generalizer.

实例验证表明：TNT当量法、汽油当量法、甲烷当量法和过氧化甲乙酮当量法分别对爆炸性物质、易燃液体物质、易燃气体物质和活性化学物质的临界量确定，具有一定的科学性和合理性，可作为《重大危险源辨识》(GB18218-2000)中临界量数值修订和危险物质扩充时进行临界量确定的参考计算方法，同时，化工厂危险程度的重大危险源分级法与易燃、易爆和有毒重大危险源评价法和死亡半径法相比，评估过程简单易行，分级结果符合实际，具有较强的可操作性和一定的推广意义。

Chitinase produced by biocontrol Trichoderma strain T-21 could be used with chemical germicide to strengthen the control effect and reduce the dosage of chemical pesticides so as to decrease the pollution and residue of chemical pesticides in crops.

生防木霉菌株T-21产生的几丁质酶，可与化学杀菌剂混合下使用，以增强田间的防治效果、减少化学农药的用量，进而减少化学农药对农作物的污染及残留。

The company also has to take chemical technology consulting, design, training, construction and installation, chemical equipment design, manufacture, installation, anti-corrosion, chemical and dangerous goods storage and rail freight yard, road transport and so on.

公司还具有承接化工技术咨询、设计、培训，建筑安装、化工设备设计、制造、安装、防腐、化工危险品及货场仓储和铁路、公路运输等。

Based on the invariability of the sought for chemical subspace to the linear transformation, a novel approach, called chemical subspace invariant to linear transformation method, is developed for estimation of chemical rank of two way data matrices.

提出了一个新的化学计量学方法，即线性变换下稳定的化学子空间法，用于二维数据的化学秩估计。

Propylene is one of the important chemical industry material , a half of its produce outputs are used to make chemical industry products in America , then the reaction's product between the rest and isobutane is alkane chemical compound demanded in petroleum .

丙烯是重要的化工原料，美国将生产量的二分之一用于制造化工产品，余下的大部分则与异丁烷反应制造汽油中所需要的烷化物。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48