冶炼

Many refining techniques have successively been developed abroad in the 1980s, such as high-pressure plasma arc melting, pressure-electro-slag-remelting, counterpressure foundry and powder metallurgy etc.

在20世纪80年代，国外相继开发了高压等离子弧熔炼、增压电渣重熔法、反压铸造法以及粉末冶金等高氮钢冶炼工艺，但我国在这方面的工作相对比较落后。

Our sales fluorite mainly used for industrial smelting, iron smelting, steel and ferro-alloys of flux, slagging agent, production of raw materials for artificial cryolite.

我司销售的萤石主要用于工业冶炼，炼铁、炼钢和铁合金的助熔剂、排渣剂，生产人造冰晶石的原料。

At the further request of our new and old customers, the multicrystal silicon smelting furnace and crystalloid processing apparatus now are on the way of research and development.

为了满足新老客户的需求，目前我公司多晶冶炼炉和晶体加工设备正在研制中。

It exerts important significance on sci-tech history of mining and smelting and historical culture research, since this mine is one of a few rare mines in China that are qualified to restore the technique scenes of "decrepitating method" mining and "cupellation method" smelting.

公园拥有诸多采矿遗址，其中黄岩坑古矿硐规模最大，保存最完整，古代文献记载最丰富详实，是国内稀有的有条件恢复"烧爆法"采矿、"灰吹法"冶炼工艺场景的矿山，对矿冶科技史和历史文化研究具有重要意义。

The simthsonite name derives from English mineralogist James Smithson(1765-1829), who identified two different minerals smithsonite from hemimorphite in 1807, both have long been confused as same mineral, called calamine, used to produce brass, mixed with cupper.

18世纪末在欧洲，人们称用于冶炼黄铜的，和铜矿混在一起的锌矿石为菱锌矿，实际上那是的"菱锌矿"里面混杂了含水硅酸锌、异极矿和碳酸锌。由于产状大多时葡萄状，所以很难区分两种矿物。

Using cyanidation method to leach gold from smelting slags .

采用氰化法提取冶炼尾渣中的金，采用单因素和正交试验考察各因素对金浸出的影响。

They can also be used for such materials as following:making planes and spacecrafts,screening high-speed neutron reactors,a superconductor in electrical appliance industry,The vanadium compound can be used as a caterlyzer in sulphuric acid industry,a mixture of ethylene and propylene in symthetic rubber and a desulfurizer in oil-refinery ,an oxidizer in making nylon,pesticide,polyvinyl chloride,a non-propylene decarbonizer in chemical fertilizer industry,amilioration of A.D.A.non poisonkous desulpurtion.

我公司生产的五氧化二钒99.5级，99级，98级以及偏钒酸铵，用途广泛，它可制取金属钒和钒合金，用于钢铁冶炼\机械，飞机以及宇宙飞船制造等行业，快中子反应堆的屏蔽材料和电子工业的超导材料，钒化物应用于硫酸工业催化剂，合成橡胶的乙烯和丙烯交联，石油精炼中的脱硫，尼龙，农药，塑料聚氯乙烯制造的氧化，化肥工业的笨非尔无毒脱碳，改良A，D，A法无毒脱硫，钒化物还因其色泽艳丽而作为颜料应用到玻璃，陶瓷，医药等行业，钒酸盐也是印染业良好的媒染剂。

VD electric furnace is a king of degasification equipment from molten steel during steel making process.

VD 炉是冶金行业冶炼过程中的一种钢液脱气设备。

The process of ecological degradation in the vicinity of Shaoguan Pb/Zn smelter may be summed as: heavy metals and acidic deposits from the waste gas from smelter resulted in the vanishment of the sensitive plant species, increasing accumulation of heavy metals in soils and acidification of topsoil worsened the chemical properties and then shallow-rooted plant, mainly the herbaceous, vanished. With the demolishment of the vegetation cover, increasing water-soil erosion worsened physico-chemical properties of soil and, subsequently, some woody plants disappeared and barren land was finally appeared.

该生态系统的退化过程可以归纳为：来自于冶炼废气的重金属和酸沉降导致了敏感植物的消亡，丧失了对土壤的缓冲保护作用；重金属在土壤表层的积累，酸性物质在土壤表层的增加导致的土壤酸化以及由此引发的有机质与养分的淋溶和重金属及Al的活性增加，加剧植被的快速退化，特别是浅根植物的衰亡；地被层的破坏，导致水土流失和土壤侵蚀加深，进一步恶化表层土壤的理化性质，一些木本植物随之消失，最终形成光板地。

It is introduced that Si- Ca- Ba- Al alloy is smelted with carbon- thermal process in submerged electric furnace,and it is indicated that Si- Ca- Ba- Al alloy is a new effective deoxidant and desulphurizing agent,and has a wide application future.

介绍了碳热法冶炼 Si- Ca- Ba- Al合金的生产实践，指出 Si- Ca- Ba- Al作为高效的脱硫脱氧剂，应用前景广阔。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失