查询词典 refining engine

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。

By using segmented fillings, it is possible to reach new dimensions in the design of the refining surface.

利用磨浆机的磨片，可以达成在磨浆机表面设计上做出新的尺寸。

First choice of green, grass carp, carp and other fish and vintage flour, maize flour, and then juices sesame oil, salt, after kneading, rolling, steaming, cutting, drying processes from refining.

首先要选用青、草、鲢、鲤等鱼肉和上等白面、玉米粉，再拌上麻油、细盐，经过揉、擀、蒸、切、晒等工序精制而成。

The volatility and melting uniformity of premelted fluxes and mixed powder was studied mainly on fluoric slag for steelmaking of mould powder base and CaO-CaF〓 based refining slag in the paper.

本文以连铸保护渣基料及CaO-CaF〓基炉外精炼渣两大炼钢含氟渣系为主，对预熔型和混合型两种形态渣的挥发性和熔化均匀性进行了研究。

The technology of foaming slag refining is a effective method to improve heating efficiency and reduce the cost.

钢包精炼炉的泡沫渣精炼工艺是提高热效率、降低生产成本的有效手段。

Zhengzhou Rip is a professional engaged in food nutrition fortifier, tobacco additives, pharmaceutical raw materials of research, production, operating as one of the high-tech enterprises, the company owns in the test, the fermentation workshop, synthesis workshop, refining workshop, Compound workshop, GMP workshop and so on, first-class production equipment, product testing facilities and perfect detection means.

郑州瑞普生物工程有限公司是一家专业从事食品营养强化剂、烟草添加剂、医药原辅料的研究、生产、经营为一体的高新技术企业，公司拥有中试车间、发酵车间、合成车间、精制车间、复配车间、GMP车间等，生产设备一流，产品检验设施齐全，检测手段完善。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？