铜的

The company's main products are various properties of bare copper enameled wire, copper Baolv enameled wire, copper Baolv bare copper, tin Baolv copper wire, bare copper, tin, such as copper.

公司的主要产品有各种性能的裸铜漆包线、铜包铝漆包线、铜包铝裸铜丝、铜包铝镀锡丝、裸铜丝、镀锡铜丝等。

For this,experimental study was made on a new process of potential-controlled preferential flotation in a sequency of copper,lead and zinc,which used LP-01 as collector for copper mineral,DDTC as collector for lead mineral,copper sulfate and butyl...

为此，以LP-01为铜矿物的捕收剂、乙硫氮为铅矿物的捕收剂、硫酸铜和丁黄药为锌矿物的活化剂和捕收剂、石灰为矿浆电位调整剂，并在选铜、铅时配合使用铅矿物的组合抑制剂ZnSO4+YN，对该多金属复杂硫化矿进行了电位调控铜、铅、锌依次优先浮选新工艺试验研究，获得了含铜21.74%、铜回收率62.31%的铜精矿，含铅61.23%、铅回收率55.07%的铅精矿和含锌56.43%、锌回收率90.02%的锌精矿。

Adapting the combination of CMC, Na2SO3 and Na2SiO3 which were environment-friendly as the depressant of galena instead of toxic sodium dichromate.

依据矿石性质的特点，铜铅锌浮选采用铜铅混合浮选、然后再进行铜铅分离，铜铅浮选尾矿进行浮选锌矿物的原则工艺流程。

In this chapter, the writer explains risk of futures markets comprise mostly market risk and credit risk, and introduces fundamental effectible factors and technical effectible factors.

第五章&期市风险的度量&以上海期货交易所金属铜期货为例，首先介绍了铜期货的概况，接着分析了影响铜期货价格因素，最后通过建立GARCH(1，1)模型来描述铜期货市场的波动性，试图对铜期货的风险进行确认。

For choosing a material to interfere with IR and laser,the IR and 10.6μm laser transmissivity of micron-copper powders of different components were tested in the smoke chamber,when the concentration of the smoke reached 1.0 g·m-3,the transmissivity of 1~3μm,3~5μm and 8~14μm IR under 30%,and the transmissivity of 10.6μm laser under 20%,the attenuation ability of red copper powders,green and red copper powders and green copper powders to IR and 10.6μm laser increased gradually.At the same time,the interferent...

为选择一种能够遮蔽红外与激光的烟幕干扰材料，在烟幕箱中测试了组分配比不同的微米铜粉的红外与10.6μm激光烟幕透过率，当烟幕浓度为1.0 g.m-3时，1~3μm，3~5μm，8~14μm红外的透过率均小于30%，10.6μm激光的透过率小于20%，红光铜粉、青红光铜粉和青光铜粉对红外与10.6μm激光的衰减能力逐渐增强；同时测试了微米铜粉对红外热像仪的干扰效果，浓度为2.0 g.m-3时，青光铜粉能够完全遮蔽红外热像仪。

One practical package of technological formula and parameter about electroplating tinting for ABS plastic are provided, including stress riddance, unoil, coarsing, sensitization, activating, revive treatment, and five-colored electroplating tinting .

介绍(丙烯腈/丁二烯/苯乙烯)共聚物制品的表面预处理、化学镀铜、电镀光亮铜和镀铜层着色等工艺，提供了一整套ABS 电镀着色的实用配方和工艺参数，包括去应力、除油、粗化、敏化、活化、还原处理及镀铜层五色系实用着色等。

There is a big problem that too much sulphur is wasted in lead bullion pyro-refining process by adding sulphur directly in northwest metallurgy of lead and zinc factory. As to the problem, a new method to decopper from lead billion through changing sulphur to PbS is invented.

针对西北铅锌厂粗铅火法精炼过程中，直接加单质硫进行除铜而出现硫损过大的问题，对除铜工艺中硫的利用方式进行了研究，提出一种除铜新工艺，即利用硫化铅代替单质硫进行除铜。

Copper nanoparticles were modified by surface modifier, methyl - methylacrylate, and minified by use of fluid-flow comminuted method, the disper sity and dispersion stability of the modified copper nanoparticles as additive i n CD 15W/40 engine oil were evaluated by high velocity centrifuger; its morpholo gy and particle size were tested by TEM and XRD analysis; and its tribological p roperty in CD 15W/40 engine oil was investigated by ball on pan tribo-tester.

采用化学改性法与液流粉碎机械法对纳米铜微粒进行了表面改性和分散研究，采用高速离心机考察了表面改性后纳米铜微粒作为添加剂在CD15W/40柴油机油中的分散性及分散稳定性，采用TEM、XRD测试了表面改性纳米铜微粒的形貌及粒径大小，采用球盘磨损试验机考察了表面改性纳米铜微粒作为CD15W/40全配方调配油添加剂的摩擦学性能，用SEM、EDS观察了磨损表面的形貌、线扫描、面分布及元素含量，分析了纳米铜微粒在摩擦过程中的减摩润滑机理。结果表明：甲基丙烯酸甲酯化学改性结合液流粉碎方法处理后纳米铜微粒的粒径进一步均匀、细化，平均粒径为24nm，并在CD15W/40油中分散性好，悬浮稳定时间长。

The copper anode slime produced in one copper smelter domestically was pre-treated with pressure acid leaching method and the leaching behavior of copper,tellurium and selenium in copper anode slime was studied.

以国内某铜冶炼厂所产的铜阳极泥为原料，采用加压酸浸的方法对该铜阳极泥进行预处理，对铜阳极泥中铜、碲、硒等元素的浸出行为进行了研究。

Specifications complete. Copper Beryllium Copper Phosphor Bronze Cup disabilities copper-nickel alloy copper tungsten copper red copper and aluminum bronze brass copper branded .11: the shape of all of the above materials: board wand ray tube coil profiles.

规格齐全。铜材铍铜磷青铜白铜钨铜杯士铜黄铜红铜铝青铜烙铜等。11：以上所有材料的形状：板棒线管带卷型材。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。