冶炼

In order to obtain the extralow oxygen steel material with little oxide inclusion, the deoxidizing dynamics of VIM refining in CaO crucible has been researched.

为了获得氧化物夹杂含量极低的超低氧钢铁材料，研究了在真空感应炉中用氧化钙坩埚冶炼钢液时在超低氧含量范围内的深脱氧动力学因素。

By injecting commercially pure argon to make pressure in furnace up to 66.66 kPa and controlling refining temperature between 1 450 ℃ to 1 500 ℃, adding Mg-Ca alloy 50 kg/t and fluxed additions CaF\-2 11 kg/t, after refining the phosphorus content in steel 00Cr18Ni10 further decreased to (50～60)×10 -6, and oxygen and sulphur content in steel decreased to (4～6)×10 -6 and 15×10 -6 respectively.

采用CaC2 CaF2 法脱磷容易增碳，使后期冶炼工艺复杂，因此最好在吹氧前使用；CaC2 CaF2 也可用作喷吹SiCa粉脱磷时的覆盖渣，可起到保持还原气氛的作用。SiCa CaF2 法是唯一在工业规模上有少量应用的还原脱磷法，而且氧化脱除增加的硅比较容易。

In metallurgical industry, soda is applied as fluxing agent and in producing synthetic detergent, additive and other sodium phosphate etc.

冶金工业用作冶炼助熔剂，还用于生产合成洗涤剂、添加剂和其它磷酸钠盐等。

It cannot be seen, heard, touched, smelt, or tasted, but it hangs in the air enveloping us nonetheless, and is most tangible in the intuitions and emotions.

它不能被看到，听到的，感动，冶炼，或品尝，但它挂在空中包络我们然而，最明显的是在直觉和情感。

This paper reviews the history of the zinc vertical retorting and other zinc smelting technologies, describes the progress of the zinc vertical retorting technology in recent years and the way for its development and believes there is still room for development of the zinc vertical retorting ,which is worth studying.

回顾了竖罐炼锌等锌冶炼技术的历史，介绍了近年来竖罐炼锌技术的进步及发展方向，认为竖罐炼锌技术仍然有发展空间，值得继续研究。

In order to reduce mercury pollution in the succeeding gold stripping,electrowinning,retorting and regeneration of the mercury-laden AC steps,the leachate is demercurated previously,i.

为消除后续解吸、电解、冶炼以及活性炭再生过程中的汞污染问题，拟对堆浸富液进行除汞预处理，即采用沉淀-絮凝法选择性去除富液中的汞杂质。

In addition, thermodynamic activity of TiO in the molten slags mentioned above have been measured at the experimental conditions.

这些半经验关系式完全可以用于钒钛磁铁矿冶炼的实际计算。

Some metals can be smelted at low temperature.

3有些金属可以在低温下冶炼。

Four tons of bauxite make two tons of alumina which in turn is smelted to produce one ton of aluminum.

4吨铝土矿可生产2吨氧化铝，而2吨氧化铝可冶炼成1吨铝。

According to the results of this study and previous analyses, it is found that Pb concentration may be used to distinguish native copper in North America and historical European smelted copper.

实验还通过扫描电镜能谱仪对24个自然铜(包括5个冶炼自然铜)样品的成分进行了检测，结果表明，北美自然铜具有极高的纯度，通常高于99%。

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