查询词典 refining

In the petroleum industry,it is used on petroleum products refining and well drilling in oil fields,even on the production of Al2O3,glass,enamelware,tan,medcine,dye and pesticides.

石油工业用于精炼石油制品，并用于油田钻井泥浆中。还可用于生产氧化铝，以及玻璃、搪瓷、制革、医药、染料和农药方面。

It still does the best job of any single search engine at turning up what we want, and it's constantly refining its algorithms to give us the most relevant results based on our past searches.

当然现在，它仍是单一搜索引擎中的翘楚，并不断更新着算法以期根据我们过去的搜索习惯来满足我们日益增长的搜索需求。

The water from cleaning silicon residue could be used as water-confected in refining epsom salt.

对于采用氟化物助浸所产生的氟化硅(SiF_4)气体环境问题，采用空心喷淋塔喷淋清水吸收方式处理。

On 31st March,1962 the name was changed to ESSO Standard Refining Company of India Limited.

公司员工超过 80000人，在全球100多个国家有经营活动。

The paper presents a new refining technology as etherification material with coker gasoline of Nanjing Refinery.

摘 要：本文研究了南京炼油厂延迟焦化汽油作为醚化原料的一种新的精制工艺。

The mechanism and current status of the development of several extrusion refining equipments are discussed.

探讨了几种挤压磨浆设备的工作原理和研究发展现状。

Lanthanides belong to the sixth cycle of the periodic table Ⅲ B family, are all solid metal, they are La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, holmium, erbium, thulium, ytterbium, and lutetium were 15 kinds of metals and their periphery are two layers of electronic 5d16s2, while the peripheral third layer f orbital but never zero to 14, so the external electronic structure of 4f0-145d16s2, and therefore these elements in oxidation number are to 3, very close chemical properties, extraction, when it is difficult to separate them they are mostly multi-element mineral mix, more difficult to increase refining, and their atomic number of 57-71, one by one to increase the number of protons the nucleus, and thus extranuclear electron of gravity is also growing, so that atomic radius decreases with increasing atomic number Z, which makes lanthanides contraction, ionic radius is also reduced, which also makes Zr, Hf, Nb and Ta, Mo and W, the atom and ionic radius very close to each other they also determine a similar nature, resulting in difficult separation, also the tribe Ⅷ of the fifth cycle, ruthenium, rhodium, palladium, and the sixth cycle, osmium, iridium, platinum is very similar in nature, thus The six elements, said platinum group elements.

镧系元素属于周期表第六周期中ⅢB族，全部是固体金属，它们是镧、铈、镨、钕、钷、钐、铕、钆、铽、镝、钬、铒、铥、镱和镥共十五种金属元素，它们的外围两层的电子均是5d16s2，而外围第三层的f轨道电子却从零增加到14个，所以外围电子结构为4f0－145d16s2，而使这些元素氧化数均为＋3，化学性质极为接近，提炼时很难分开，它们的矿石又大多是多种元素混在一起的，更增加提纯难度，它们的原子序数为57－71，核内质子数逐个增加，因而对核外电子引力也不断增强，使原子半径随原子序数Z增加而减小，这就使镧系元素收缩、离子半径也缩小，这也使得Zr和Hf，Nb和Ta、Mo和W等原子和离子半径都很接近、也决定了它们彼此性质类似，以致难以分离、也使第Ⅷ族中第五周期的钌、铑、钯和第六周期的锇、铱、铂在性质上极为相似，因而称这六个元素为铂系元素。

Home thinks fire refining miscellaneous copper is very inaccessible all the time the standard of tall electric copper, special abound in in a few kinds of impurity, and when fantasticality.

国内一直认为火法精炼杂铜很难达到高导电铜的标准，非凡在几种杂质大量存在，并且变化无常时。

This paper discusses the source of major inclusions and existence in 75% ferrosilicon, analyzes and researches the refining methods of 75% ferrosilicon.

讨论了75％硅铁中主要杂质来源及存在状态，并对精炼措施做了研究分析。

At present the company has oil refining, chemical industry, plastic, chemical fibber to wait for 75 to basically produce device.

目前公司有炼油、化工、塑料、化纤等主要生产装置75套。

The teacher likes the honeymouthed little girl very much.

老师很喜欢这个嘴甜的小姑娘。

Mr. Notker Bien's interests are traveling, spending quality time with the family and long-distance-running.

诺特卡·柏恩先生热爱旅游，长跑，以及和家人一起共度美好时光。