金属矿石
- 与 金属矿石 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The major ore type is Gold bearing quartz type with poly metal sulfide containing abundant bullion and much.
矿石类型为富金银多金属硫化物含金石英脉型。
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There is no hammer in my hand without the ecology of blacksmithing, steel forging, iron-mining, transportation and retailing.
没有一把锤子不是经过打造、金属锻造、矿石采取、运输和销售的生态网络才制造出来的。
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Behind you there is a steelworks that converts ore - congealed, earthly time - into metal.
你身后是一个不断将矿石-凝结的世俗时间-转化成金属的钢厂。
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We have been importing and exporting all kinds of metals and minerals for thirty years and have many costumer and friends in over 80 countries and regions .
我们已经做进出口各种金属制品及矿石业务三十年了,拥有80多个国家和地区的客户和友人。
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In the practice of mineral process, the dotation of marmatite is one of the dii'l'iculL problems of polymetal sulphide separable flotation, which makes it difficult to increase the recovery of zinc mineral at the marmatite mine in wenshan ,which makes it even more difficult because of its ore characteristic.
选矿实践中,铁闪锌矿的浮选是目前多金属硫化矿分离的难题之一,文山铁闪锌矿的浮选回收率及品位由于矿石特性所致,要使其达到较好的指标,具有较大的难度。
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1"Euxenite:a lustrous, blackish-brown rare -earth mineral consisting primarily of cerium, erbium, titanium, uranium, and yttrium."
黑稀金矿:一种光亮的棕黑色稀土矿石,主要由铈、铒、钛、铀和钇构成。〞钇被用作稀土金属一种理想的非磁性稀释剂。
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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。
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In the baggage cars, kelps, fishplate, rolled iron, sleepers, wire rods, plates and sheets, laminated articles, hot rolled hoops, splints and mortar carriages, and Zorè s ore.
车里装着海带、尾板、材、木、钢、金属板、合材料、轧钢箍、木条和迫击炮车,以及佐泽斯矿石。
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In the baggage cars, kelps, fishplate, rolled iron, sleepers, wire rods, plates and sheets, laminated articles, hot rolled hoops, splints and mortar carriages, and Zorès ore.
车里装着海带、鱼尾板、钢材、枕木、盘钢、厚金属板、叠合材料、热轧钢箍、软木条和迫击炮车,以及佐泽斯矿石。
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Ago a kind of misconception that the rare earth metals is very scarce in nature, in fact not the case, many of which elements such as lanthanum, cerium, praseodymium, neodymium and samarium in accordance with their distribution in nature is no less well-known people in some of the elements of industry, common There ore monazite, scandium yttrium stone, silicon and cerium stone, stone and brown curtains and other fluorocarbon calcium cerium ore.
以前有种错误概念,认为稀土金属在自然界很稀少,其实不然,其中很多元素如镧、铈、镨、钕和钐按其在自然界的分布不次于人们在工业上熟知的某些元素,常见的矿石有独居石、钪钇石、硅铈石、褐帘石和氟碳钙铈矿等。
- 推荐网络例句
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Do you know, i need you to come back
你知道吗,我需要你回来
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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.
1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。
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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.
第三章汉藏语&的&字结构的类型划分。