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- Keywords lateritic nickel ores;aspergillus niger;organic acids;leaching; 氧化镍矿;黑曲霉菌;有机酸;浸出;
- lateritic nickel ores 氧化镍矿
- Imported laterite nickel ores 进口红土镍矿
- Five catalysts were prepared from nickel ores and optimal catalyst was screened out. 摘要以富含镍的矿石为原料，制备了五种催化剂，确定了最佳催化剂。
- Coat the surface with either nickel or copper (nickel is now generally the preferred commercial process) from an electroless plating solution. 用镍或者铜在无镀电镀液中进行表面处理，目前镍是更流行的商业用工艺。
- The block is cast in one piece from gray iron or iron alloyed with other metals, such as nickel or chromium. Some blocks are cast from aluminum. 缸体是由灰铸铁或含有镍或铬的合金铸铁整体铸造而成的。有的缸体由铝浇铸而成。
- Word expert Mitford Mathews said it read “I'll bet neither the kid nor his father ever saw a nickel or dime.They would not have been interested in such chickenfeed. 词汇专家米特福德马修说它是这样写到，“我敢肯定父亲和孩子都没有把一个镍币和角币放在眼里，他们不会对这样的鸡食感兴趣的。”
- It is not reasonable in economy to recover nickel from Jinchuan low-grade oxidized nickel ores by present metallurgical or hydrometallurgical process. 对于金川有色金属公司低品位的氧化镍矿,目前的火法和湿法冶金工艺,生产成本高,难以回收利用。
- Development of mine of new laterite nickel is used suffer influence of a lot of element.Form hard inside brief period produce can. 新红土镍矿开发利用受诸多因素影响．短时期内难以形成产能。
- So the researchers used wet-chemistry techniques to deposit nickel or titanium on the floor as a seed layer for zinc to stick to during electroplating. 因此研究人员采用湿化学技术，先在底板涂上镍或钛当成种子层，以便电镀时能让锌固定在底板上。
- He likes to move quickly and to be fair. He's not someone who nickels or dimes,’ said Mr. Altman. 阿尔特曼说，巴菲特喜欢迅速而公平。他不是那种斤斤计较的人。
- Whether it rains or not makes no difference to me. 下不下雨对我来说都一样。
- Keywords Nickel deposit;ore prospecting direction;summary;geological characteristics;lateritic nickel;nickel sulfide; 镍矿床;找矿方向;综述;地质特征;红土镍矿;硫化镍;
- Rick found a sure-enough nickel. 里克发现一个纯正的镍币。
- Boiling water sealing, high temperature vapor sealing, cold sealing (with nickel or nickel free), medium temperature sealing, organic polymer film and other sealing process were introduced. 介绍沸纯水封孔、高温水蒸气封孔、冷封孔(含镍和无镍)、中温封孔和有机聚合物膜等工艺。
- Eddy try to nickel and dime his way through life. 埃迪想脚踏实地慢慢地取得成功。
- No man will squabble over a nickel. 没有人会为了五分钱而吵架。
- Many one or little one is indifferent to me. 多一个或少一个对我是无关紧要的。
- Chock the barrel up or else it will roll over. 用楔子塞住圆桶,不然它会滚过去。
- Do you teach your students singly or in groups? 你教学生是个别地教还是按组教？
