查询词典 copper bit

Atmospheric corrosion rate of pure copper , composition and protectiveness of corrosion product of pure copper was different under the different exposure conditions .

不同暴露环境下，纯铜的大气腐蚀速率，腐蚀产物组成及其保护性都存在差异。

The influence of copper ion on enzyme activity of hog liver copper zinc superoxide dismutase was monitored by using the pyrogallol autoxidation inhibition assay.

利用邻苯三酚自氧化法监测在磷酸盐缓冲体系中Cu2＋对猪肝铜锌超氧化物歧化酶活力的影响，认为Cu2＋与猪肝CuZnSOD存在直接相互作用。

Management believes that the strategic JV impressively unites Quadra's skills in operating copper producing assets and State Grid's position as major end user of copper in China.

管理层人士相信，两家公司的战略性合作不仅很好地发挥了夸德拉在铜矿生产领域的先进技术，而且满足了国家电网作为中国主要铜制品终端用户的强大需求。

Although imports of copper for a new high, but from the research situation, the current inventory of raw materials processing industry is still relatively low, because of the recent high price of copper continued to enter the off-season and the existence of orders is expected to reduce, to avoid the risk of processing enterprises, the preparation of speculation Treasury few acts.

虽然进口铜连续创新高，但从调研的情况来看，目前加工企业的原料库存仍处相对低位，因近期铜价持续高位，进入淡季订单又存在减少预期，加工企业为规避风险，投机的备库行为不多。

In light of production practice, the author introduces some measures for reducing copper content of electric furnace slag to .8%: aplication of new type of concentrate nozzles, stabilization of flash furnace slurry, addition of coke powder to flash furnaces, control of the Fe/Si ratio of furnace slag, increasing the time for clarification of copper liquor, and addition of reductants, such as coal or pyrite.

结合生产实践，介绍了控制电炉渣含铜低于 0 。8%的几点措施：采用新型精矿喷嘴，稳定闪速炉炉浆；向闪速炉中添加焦粉；控制炉渣的铁硅比；增加铜液澄清时间；向电炉中加入还原剂煤块或黄铁矿等。

The main products of the company are ornamental materials of super copper , and it also produces swing door 、 auto sliding door 、 arc sliding door 、 technical fire door 、 and auger elevator ornament etc . it offers the ornamental copper for large basso ? relievo fresco 、 buddhism foundry and articles

公司是专业生产铜装饰材料及设计、开发、制造、施工为一体的企业，并承接建筑铜装饰工程及五星级酒店高档铜装饰项目，生产各种规格的旋转门、平滑门、别墅门、电控门、旋转护栏、屋顶防水瓦、浮雕壁画及铸造青铜器。

Study on Improvement of Recovery of Gold and Silver from the Copper Dross Smelting in Reverberatory Furnace;2. After that, the copper in leach liquor can be extracted with the ternary extractant mainly containing P204, and the gold and silver in leach residue can be recovered by a process of cyanidation-replacement of Z.

为避免硫酸烧渣对环境的污染，以硫酸烧渣为原料，通过添加活性还原剂，用废硫酸直接还原浸出铁并制铁黄，而后用以P2 0 4为主体的三元萃取剂萃取回收浸液中的铜，用全泥氰化和锌粉置换工艺从浸渣中提取金银，较经济有效地回收利用了烧渣中的有价金属，铁、铜和金的回收率分别达到了 93。

The synthesis of copper sulfide and copper selenide nano/micro hollow cages with uniform polyhedral and sphere shapes.

使用盐酸羟胺作还原剂时，得到八面体的Cu2O微晶，改变反应条件得到一维和立方体Cu2O的混合物及多孔颗粒。

Soldering of copper, brass, copper alloysgalvanized iron plain sheet.

铜及铜合金、镀锌铁皮的钎焊。

Soldering of copper, brass, copper alloys and galvanized iron plain sheet.

铜、黄铜、铁、镀锌铁皮的钎焊。

He's a pretty westernised kind of guy.

他是一个非常西化的人。

National spirit is the moral kingpin for a nation to realize common ideal and goal.

一、中华民族精神的基本内涵党的十六大报告指出：在五千多年的发展中，中华民族形成了以爱国主义为核心的团结统一、爱好和平、勤劳勇敢、自强不息的伟大民族精神。