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- leaded zinc copper 含铅锌白铜
- Copper and lead in Qingshuitang lead zinc ore were separated by floatation separation with ternary agent, its experiment index is higher than that with potassium dichromate. 用三元合剂对清水塘铅锌矿进行铜铅分离浮选,其试验指标比以前用重铬酸钾的试验指标高,药剂用量低,避免铬的污染,改善生产环
- The environmental effect of typha latifolia on disposal of sewage and tailing of Fankou lead zinc mine is described. 介绍了香蒲植物在凡口铅锌矿污水处理以及尾矿治理中的环保作用。
- Yinshan lead zinc deposit lies in the Presinian strata.The ore bodies occur in phyllite,are controlled by fault. 银山铅锌矿床产于前震旦系地层中,容矿围岩主要为千枚岩,矿体呈脉状受构造裂隙控制。
- The Hetaoping lead zinc deposit in Baoshan is a middle scale of lead and zinc deposit. 保山核桃坪铅-锌矿为一中型铅-锌矿床。
- The impact of administration of metallic sulphur protein on blood lead，zinc，calcium and iron in chil-dren. 血铅;金属硫蛋白;干预;儿童,,血铅;金属硫蛋白;干预;儿童,1对象和方法,2结果,3讨论,参考文献:
- In thesis some special -minings were analysesed and discussed for the unstable rock -surrounded ore body under well in baoshan lead zinc silve r mine. 针对湖南宝山铅锌银矿井下不稳固围岩内矿体,就几种特殊采矿方法进行分析和探讨。
- zinc copper alloy (electro)plating [化] 电镀黄铜
- The distribution of silicified breccia(zone) in Shuikoushan lead zinc polymetallic ore field obviously shows close association with ore field structure. 水口山铅-锌多金属矿田内的硅化角砾岩体(带)的展布明显地与矿田构造关系密切。
- Lead, iron, copper, tin, and zinc are base metals. 铅、铁、铜、锡和锌都是基本金属。
- Copper has less resistance than lead. 铜的电阻比铅的小。
- Scandinavian Lead Zinc Association 斯堪的纳维亚铅锌协会
- low lead zinc alloy without cadmium 不加镉的低铅锌合金
- An alloy composed of lead, tin, and zinc. 铅锡锌化合物由铅、锡和锌组成的一种合金
- Keywords Lead Blood lead Zinc protoporphyrin; 铅;血铅;锌卟啉;
- lead zinc niobate based ceramics PZN基陶瓷
- molybdenum tungsten lead zinc deposits 钼钨铅锌矿田
- The Determination of Microelement Zinc Copper Ferrous Contents Of Hair For Children with Learning Disability 学习困难儿童发锌、铜、铁含量测定
- The horse forged ahead the lead in the homestretch. 那匹马在最后阶段突然加速跑到前面。
- Shirley will try out for the lead in the play. 雪莉将参加该剧主角的选拔演出。
