This paper describes main technical characteristics of underhand drift hydraulic sand filling method and its successful application at North Part of Wushan Copper Mine.
简述了铲运机出矿的下向进路式水砂充填采矿法的主要技术特点和在武山铜矿北矿带的成功应用。
Use a filter funnel and paper to filter the mixture of copper sulphate, sand and water into a second jar.
用过滤漏斗和过滤纸把硫酸铜、砂子和水的混合物过滤到另一个广口瓶里。
A new way of copper tailings' comprehensive utilization is studied, i. e. use copper tailings to make colour sand, which can be used in buildings as decorated materials.
研究了铜尾矿资源综合利用的新途径，利用铜尾矿研制彩色石英砂，使其成为一种装饰材料应用于建筑工业。
This paper introduced the study and application situation of replacing river sand with copper slag in compounding concrete in Tongkuangyu copper Mine.
本文介绍了铜矿峪矿铜渣代砂配制流态混凝土的研究与应用情况。
The defects of casting technology and the impurities in copper alloy material cause roughness of faucet surface with large amounts of sand holes.
铸造技术不完善、铜合金原料中的杂质致使水龙头零件表面疏松，并有大量砂眼。
Tin ore, copper, zinc mine, iron ore, snake bite mine, silica, sand and gravel sales.
锡矿、铜矿、锌矿、铁矿、蛇纹矿、硅石、砂石购销。
If such as metal abrasive is used in sand washing, itwill remain on the surface of the copper propeller, then galvanic corrosionwill occur with Cu.
如果用金属磨料如钢砂冲击铜质螺旋桨会在铜表面上残留，会与铜发生电偶腐蚀。
According to the tests results, it is concluded that the process of washing-sand leaching-stirring leaching is reasonable for the oxide copper ore of Yulong copper mine.
根据试验结果，认为洗矿—矿砂堆浸—矿泥搅拌浸出是处理玉龙铜矿氧化带矿石的合理工艺。
Copper nickel good machinability and bad crack resistance. Repair welding of sand hole and gray cast iron machined surface subject to no load.
镍铜，易加工，但抗裂性较差。不受力的灰铸铁加工面及砂眼补焊。
Copper nickel, good machinability and bad crack resistance. Repair welding of sand hole and gray cast iron machined surface subject to no load.
镍铜，易加工，但抗裂性较差。不受力的灰铸铁加工面及砂眼补焊。
Copper nickel, good machinability and bad crack resistance. Repair welding of sand hole and gray cast iron machined surface subject to no load.
镍铜，易加工，但抗裂性较差。不受力的灰铸铁加工面及砂眼补焊。
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