The microstructure and mechanical properties of a copper bearing age hardening steel were studied.
研究了含铜时效钢焊接热影响区的组织与性能。
The properties of zinc, lead and copper bearing polymetallic are complicated. The difference of the ore's purity is large. And there are carbon gangues in the ores.
某铜铅锌多金属矿石其矿石性质较为复杂，原矿品位差距较大，且含有碳质脉石。
The most common approach to extracting metal-bearing ore from a porphyry copper deposit is by open-pit mining, although such mines also typically include some underground activities.
从斑岩含铜矿床开采含金属的矿石，最主要的方式是露天开采，尽管这种矿床常会伴随一些地下的地质活动。
The effects of the aging temperature and holding time on the microstructure and hardness of the ultra-low-carbon steel bearing copper were investigated.
研究了时效温度和保温时间对时效硬化型超低碳含铜钢的显微组织和硬度的影响。
Microhardness testing during aging treatment in high purity steel bearing copper was carried out.
对经时效处理后的含铜高纯钢进行了显微硬度测试。
Material: low carbon steel, carbon steel, stainless steel, bearing steel, alloy steel, free cutting steel, copper and aluminum.
产品材料：低碳钢、中碳钢、不锈钢、轴承钢、合金钢、易切削钢、铜、铝等。
Oxidative carbonylation of methanol to dimethyl carbonate catalyzed by a series of copper complexes bearing ligands with nitrogen, oxygen and phosphine donors is reported.
报道了一系列铜与含氮、氧、磷配体形成的配位催化剂用于甲醇氧化羰化合成碳酸二甲酯的研究结果。
The friction and wear tests of the self lubricating bearing made of carbon fiber reinforced copper matrix composite materials are arranged by uniform design that can greatly reduce the test duration.
根据均匀设计原理，对碳纤维增强铜基复合材料的磨损试验参数予以科学排列，不仅减少了试验次数，而且提高了试验数据统计结果的可靠性。
The invention relates to a solid copper alloy bearing cage mold casting produced by centrifugal casting, and belongs to the machining field.
本发明涉及一种离心铸造生产实体铜合金轴承保持架成型铸件，属于机械加工领域。
This method has been employed with good results for determining copper in tin-based bearing alloy, Babbitt alloy and crude copper containing tin and antimony.
本法已应用于锡基轴承合金、巴氏合金及含有锡或锑的粗铜中铜的测定，效果良好。
Along the Huanggangliang - Ganzhuer metallogenic province in Inner Mongolia have been found a lot of larger copper - bearing sulfide deposits including Tuofengshan deposit.
内蒙古中部黄岗梁-甘珠尔庙成矿带已发现多处颇具规模的含铜硫化物矿床，驼峰山矿床位于其中。
The mold casting is characterized in that the solid copper alloy bearing cage mold casting is produced by a special centrifugal casting mold.
采用专用离心铸造模具生产实体铜合金轴承保持架成型铸件。
The copper-cobalt deposits hosted in the sedimentary sandstone and the cobalt-bearing magmatic Cu-Ni sulphide deposits are two kinds of the most important cobalt deposits.
沉积型砂岩容矿的铜钴矿床和含钴的岩浆岩型硫化铜镍矿床是两个最重要的钴矿床类型。
The results show that the recrystallizing temperature of pure copper are raised to a higher temperature range, which improves the thermal stability and bearing resistance to high temperature.
结果表明：经电脉冲处理的纯铜再结晶过程向高温区推移，使纯铜的热稳定性、 耐热性能得到了改善。
This paper describes the experimental investigation on producing blister copper and recovering gold and silver by direct smelting of gold-bearing material.
进行了含金物料直接熔炼粗铜捕集回收金、银的试验研究。
A modified ECUPREX Process, which is suitable for chalcopyrite-bearing copper concentrates, is described.
本文介绍了适合于处理含黄铜矿的铜精矿的改进的ECUPREX工艺。
The copper-bearing porphyry is with an intense quartzsericitization, kaolinitization and mineralization.
含铜斑岩体具强烈高岭土化、石英绢云母化。
The effect of heating process on surface oxidation of copper-bearing steel was studied.
研究了加热工艺对含铜钢表面氧化的影响。
In this paper, the study on making cupric sulfate with high arsenic bearing copper concentrate and the recovery of gold and silver are introduced.
介绍了以高砷铜精矿为原料，进行制取硫酸铜并回收其中金银的研究。
Cobalt producers in Congo are turning to the production of copper products to take advantage of record high copper price resulting in less cobalt bearing raw materials available in the market.
较高的铜的价格使得刚果的钴制造商转向了铜制产品的生产，这导致了市场上带有钴含量的原材料的短缺。
The South ore-bearing zone of Wushan copper mine is mined with ascending horizontal slicing hydraulic fill crosscut mining system. Roof falling and rib spalling occurred in any times.
武山铜矿南矿带采用上向水平分层进路水砂充填法回采，采场多次发生冒顶、片帮。
It was also found that, besides native silver, there existed coPPer-bearing argentite which seemed to be an alternation Product through the replacing of native silver by late-formed copper sulfide.
银矿物除自然银外，还见有后期铜的硫化物交代自然银形成的含铜辉银矿。
Copper-bearing colloidal pyrite ore is a refractory ore. The metallurgical performances of copper flotation are very low.
含铜胶状黄铁矿矿石是十分难选的矿石，铜浮选指标很低。
There are two metallogenic formations for copper nickel deposits related to ultrabasic magmatism, namely chrome and platinum bearing formations.
与超基性岩浆作用有关的铜镍硫化物矿床主要有两种成矿建造，一种为含铬建造，另一种为含铂建造。
Precipitation behavior of antibacterial phase in copper-bearing ferrite antibacterial stainless steel;
研究了铁素体和奥氏体含铜抗菌不锈钢的抗菌特性及相关机制。
Precipitation behavior of antibacterial phase in copper-bearing ferrite antibacterial stainless steel;
研究了铁素体和奥氏体含铜抗菌不锈钢的抗菌特性及相关机制。
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