A new gravimetric method for determining Cu and Sn in the core-shell Cu-Sn bimetallic nanoparticle was proposed.
探讨了测定核壳式纳米铜-锡双金属粉的各组分含量的重量分析法。
The research progresses and applications of Cu-Sn alloy plating process are presented, and the bath formulations and operational conditions of Cu-Sn alloy plating process are also introduced.
介绍了电镀铜锡合金工艺的研究进展和应用、电镀铜锡合金镀液配方和工艺条件。
The Al, Pb, Cu, Cd, Fe, Sn etc trace element in the electrolytic zinc were accurately and quickly measured by using ICP-AES method.
采用ICP—AES法准确、快速地测定电锌中的铝、铅、铜、镉、铁、锡等微量元素，并对方法的准确度和精密度进行了检验。
Counter-flow spray technique for the treatment of the rinsing water containing pyrophosphates in Cu- Sn-Ni alloy plating is described.
电镀焦磷酸盐铜锡镍废水由“常流水”清洗方式改为反喷淋清洗方式。
Metallic elements such as Fe, Cu, al, Pb, Na, Zn, Sn and Cd etc. would influence the stability of grape wine.
影响葡萄酒稳定性的金属元素有铁、铜、铝、铅、钠、锌、锡和镉等。
There exist large Au, Cu, Pb-Zn, Ni, rare metals, rare earth, Sn, Mo, V, Ti, W and some other types of ore deposits.
具有大型、 超大型规模的矿产为金、铜、铅锌、镍、稀有金属、稀土金属、锡、钼以及钒、钛、钨等。
Cu Sn plating is a right substitute for nickel coating because it is not allergic to human body, can meet anti diffusion requirement and has a lower cost.
电镀铜锡合金是一种合适的代镍镀层，它不使人体过敏，能满足防扩散性能的要求，且成本较低。
The associated gold mineralization can be classified into two types: Au (Ag) -bearing polymetallic skarn sulphide Sn-Cu deposit and Au-be.
伴生金矿床可分为含金(银)多金属矽卡岩硫化锡铜矿床及含金脉(层)状锡铅矿床。
The Shanghai economic district is rich in mineral resources of following varieties: mainly Cu, Pb, Zn, W, Sn, Mo, Mn, Au, Ag, REE, Nb and Ta.
上海经济区蕴藏着丰富的金属矿产资源，主要有铁、铜、铅、锌、钨、锡、钼、锰、金、银、稀土、铌、钽等矿种。
Low carbon steel for wire drawing has higher tensile strength in SGIS. The analysis showed that higher tensiles strength was mainly originated from the high content of Cu, As, Sn in steel.
介绍了韶钢低碳拉丝用钢抗拉强度偏高的情况，分析表明钢中微量元素铜、砷、锡含量高是导致低碳拉丝用钢强度高的主要因素。
Mlain composingminerals flotabiility and SN-9 chemisorption in Cu-S separation are discussed in details.
着重论述了SN一9在铜、硫分离浮选中的作用。
A newly developed self fusion Cu-based Cu-Ni-Sn alloy powder and the PTA coating technology are described.
研制成功了一种新型铜基自熔性合金粉末，在高强度钢基体上采用等离子喷焊工艺制备焊层。
Lead, total Hg, total As, Cu, Zn, Cd, Sn, and many other heavy metals.
铅，总汞，总砷，铜，锌，镉，锡及其它重金属。
After the treatment with NaSO_3 and hydrochloric acid, 99% Se, 93% As, 80% Sn and 87.5% Cu are removed from the raw powdered-tellurium, and the powders of 99.669% te are prepared.
还原所得粗碲粉经亚硫酸钠脱硒，盐酸酸洗除杂处理，硒、砷、锡、铜的脱出率分别达到99%、93%、80%、87.5%，得到含碲99.669%的金属碲粉。
A new technology of decomposition of Sn-Pb-Cu-Fe multi-elemental alloys was presented. The principal parameters of this process were investigated.
本文提出锡铅铜铁多元合金分解新工艺流程。
A new technology of decomposition of Sn-Pb-Cu-Fe multi-elemental alloys was presented. The principal parameters of this process were investigated.
本文提出锡铅铜铁多元合金分解新工艺流程。
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