In order to decrease the content of unstable components such as sulphur, nitrogen and so on in RFCC LCO, an approach to chemical refining agent FS is adopted in our experiment.
为了降低重油催化裂化柴油中硫、氮等不安定组分的含量，采取添加fs化学精制剂的方法。
Steel and iron manufacturers also extensively use oxygen or oxygen-enriched air to affect chemical refining and heating associated with carbon removal and other oxidation reactions.
钢铁制造商还广泛使用氧或富氧空气来影响同除碳和其它氧化反应相联系的化学精炼和加热。
Principal USES include ore processing, fertilizer manufacturing, oil refining, wastewater processing and chemical synthesis.
其主要用途包括矿石加工，化肥生产，石油炼制，废水处理和化学合成。
But the seeds can be consumed only after an extensive refining process removes the gossypol, a toxic chemical that helps protect the plant from insect and microbe infestation.
但是，只有在经过一道去除棉子酚的深加工精炼程序之后，棉籽才能食用。棉子酚能保护棉花植株免受昆虫及微生物的侵扰，是一种有毒的化学物质。
It's used in mining, steel production, oil refining and chemical synthesis, and in the manufacture of fertilisers, detergents and plastics.
它被用于采矿、炼钢、石油精炼化工，以及制造化肥、洗涤剂和塑料。
Recycling or refining companies either collect or purchase tons of this e-waste and industrial scraps. They then use chemical processes to separate the various metals.
回收公司、精炼公司收集或购买上吨的电子垃圾和工业废料。然后利用化学反应分离不同的金属。
Causes of failure are analyzed for heat exchangers widely applied in refining units and chemical units from the viewpoints of corrosion and sealing element failure.
针对炼油、化工装置中应用广泛的换热器的失效问题，从腐蚀、密封件失效等方面入手，分析了换热器的失效原因。
This paper reviews the main achievements and conclusions in research of coal chemical structure and characteristics in solvent refining processes in the world.
本文简要介绍了国内外对煤的化学结构，及其在溶剂精炼工艺中的特性研究的主要成果和结论。
They tried to hasten this transformation by heating and refining the metal in a variety of chemical processes, most of which were kept secret.
他们尝试用各种化学方法加热、冶炼金属来加速这种转化，但大部分方法是秘密进行的。
Chemical, smelting, refining, chemical process, such as corrosion resistance and waste treatment systems.
化学、冶炼、炼油等化工过程中的耐腐蚀及三废处理系统。
The production technologies for multiple petrochemical raw materials were introduced with the theoretical mechanism explained by conversion of chemical structures in the refining process.
介绍了炼油过程中多产石油化工原料的有关工艺技术，从化学结构转化角度阐明了理论依据。
The technical keys of manufacturing large high - low pressure combined rotors are selecting optimum chemical compositions, refining , forging and special heat treatment.
制造大型高低压复合转子的技术难点是：选择最佳的化学成分精炼、合理的锻造工艺和采用特殊的热处理方法。
That is to treat LD31 alloy by selecting reasonable chemical components and strengthening melt refining.
提出了选择合理的化学成份和加强熔体精炼等方法，对LD31合金进行处理。
Chemical basic concept is the refining and chemical knowledge distillation, chemical knowledge is a basic chemical building tools and the concept of vector.
化学基本观念是化学知识的提炼与升华，化学知识是构建化学基本观念的工具与载体。
Changes of chemical components of Radix et Rhizoma Rhei in the procedure of extracting and refining-study on the decomposition mechanism of emodin while heating in water.
大黄在提取精制工艺中的化学成分变化研究大黄素的湿热降解机理探讨。
The research of furfural refining adding denitrogenation agents by the method of combining physical extraction and chemical reaction has been done.
在糠醛精制过程中添加脱氮组分，采用物理抽提与化学反应相结合的方法对模拟基础油进行脱碱氮研究。
The each content of gum, total oxidation insoluble matters and olefins, etc, is decreased significantly by chemical treatment of coker diesel oil before hydro-refining.
对焦化柴油进行加氢精制前化学精制处理，可使焦化柴油中的胶质、氧化总不溶物、烯烃等含量大幅度降低。
Double metal rolling fin tubes are widely used in refining, chemical, power plant and many other industries because they have good heat transfer, mechanical, anti-corrosion performance.
双金属轧制翅片管以其优良的传热性能、机械性能和耐腐蚀性能在许多工业领域，特别是炼油、化工、发电行业得到了广泛应用。
During the process of refining pills, some alchemists had understood chemical knowledge by various kinds of possible experiments and exploration on cinnabar and related materials.
在炼丹的过程中，炼丹术士们围绕着丹砂以及与丹砂有关的物质进行了各种可能性的探索和实验，并了解到了许多相关的化学知识。
Thoroughly revised and expanded by 50%, this edition of this handbook offers petroleum and chemical engineers a comprehensive guide to all aspects of petroleum refining processes.
完全修正并且扩大50%，这本手册的这版给石油和化学工程师提供全面的石油精炼过程的各方面指南。
A lab-scale chemical neutralizing-coagulative precipitation process was carried out to treat fluoride-rich acid wastewater in a rare earth wet refining factory.
采用实验室规模的化学混凝沉淀法处理某稀土湿法冶炼厂酸性含氟废水。
Water level control is an important problem in design work for oil refining and chemical factory.
锅炉给水自动调节在炼油、化工设计中是一个非常重要的问题。
As a raw material need in large quantity in oil refining chemical enterprise, catalyst 's price fluctuation is one of factors to influent product cost.
催化剂作为炼油化工企业大量需求的原料，其价格的波动是影响产品成本的因素之一。
The industries with high incidence of occupational dermatoses are oil refining and coking plant, metallurgy, chemical industry, rubber producing, glass fiber making and etc.
我国职业性皮肤病发病率较高的工业包括炼油炼焦业、冶金业、化工业、橡胶业、玻璃纤维合成业等。
The metallurgical effects and the effect on quality of the steel were compared between refining with chemical heating and that without heating.
在此基础上，对钢水炉外化学升温精炼与常规精炼的冶金效果及对钢水质量的影响进行了对比分析。
In oil refining and chemical engineering equipments, the heat exchangers are 40 percent of the total.
在炼油、化工装置中换热器占总设备数量的40%左右。
Oil refining, Petroleum, Chemical industry, Ocean developing industry, paper industry, fertilizer industry.
炼油工业、石油工业、海洋开发、造纸工业、化肥工业等。
Material Tracking can be used in several industries including mining, blending and shipping, iron and steel making, ore processing and concentration, metals refining and chemical batch operations.
物料跟踪软件可以被用在许多行业中，包括采矿业、混和物加工和海运、钢铁制造、矿石加工和浓缩、金属冶炼和化学制品批量生产。
This Law does not apply to the protection of urban gas pipelines, and pipelines within the factory areas of oil refining, petro-chemical and other enterprises.
城镇燃气管道和炼油、化工等企业厂区内管道的保护，不适用本法。
This Law does not apply to the protection of urban gas pipelines, and pipelines within the factory areas of oil refining, petro-chemical and other enterprises.
城镇燃气管道和炼油、化工等企业厂区内管道的保护，不适用本法。
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