查询词典 silver

The objective of the present study was to recover silver and remove cyanide from silver-plating wastewater using the novel pulse-electrolysis technique.

利用脉冲电源从含氰含银电镀废水中回收银和去除氰，对比了脉冲电源与直流电源对含氰镀银废水的处理效果，系统研究了脉冲电源的电解电压、占空比和脉冲频率等参数对电能消耗、银回收率和除氰率的影响。

Silver electroplating of beryllium bronze with thiosulfate was used to replace conventional toxic silver plating with cyanide in accordance of the characteristics of the beryllium bronze .

从分析铍青铜材料的特殊性入手，针对性地采取有效的前处理工艺措施，以硫代硫酸盐镀银取代传统的有毒的氰化镀银，分析了银镀层变色的原因并提出了相应的抗变色处理措施。

The formulation and operation conditions of cyanide silver plating were introduced, and a blackening agent formulation with jet black finish on silver surface and its post-treatment process were presented.

介绍了氰化镀银配方及操作条件，给出了一种银上着色深的黑化剂配方及其后处理工艺。

Process development for the gold concentrate roasting- cyanide leaching in China;2. The feasibility study of extracting gold by liquid membrane techuique from the pulp of cyanide leaching ;3. Discussion on the cause of low silver leaching rate taken place in gold and silver cyanide leaching and ways to increase it

加强充气搅拌预氧化可将含金硫化矿在磨矿过程中产生的、对氰化浸出有害的难免离子氧化成对氰化浸出无害的离子，同时在磁黄铁矿和白铁矿颗粒表面生成Fe3薄膜，阻止了它们的进一步溶解，从而大大提高了金银的氰化浸出率。

Comprehensive recovery of gold ; silver ; copper and lead ; oxidation leaching copper in ammonia solution ; leaching lead with nitric acid ; leaching gold and silver with cyanide

中国科学院化工冶金研究所；黄金， GOLD ，编辑部邮箱 1997年 05期综合回收金、银、铜、铅；氧化氨浸脱铜；硝酸脱铅；氰化提取金银

The mean diameters of silver nanoparticles prepared by silver nitrate-sodium citrate reduction method are measured by transmission electron microscope.

用透射电子显微镜测量了用硝酸银柠檬酸钠还原法制备出的银纳米微粒的平均粒径。

It was found that the silver citrate emulsion reach the nano scale in the conditions of 2% PVP and 2 hours grinding. The silver citrate was reduceed completely when Vc excessive double.

研究结果表明，当PVP含量为2%，研磨时间为2小时时，得到了纳米级的柠檬酸银乳液。

Sliver nanoplates were prepared through a visible light induced reduction process by a reaction between sodium citrate and silver nitrate in an aqueous solvent at room temperature. UV-Vis spectra were employed to monitor the growth of the silver nanoplates.

在水相体系中以柠檬酸钠和硝酸银为反应物，利用可见光诱导的还原过程在室温下制备盘状的银纳米粒子，通过紫外-可见光谱监控了不同反应条件下银纳米粒子的生长过程及体系的稳定性。

SG series of roller-grinding machine of state utility model patents; Shenzhen-Hong Kong Expo Gold Medal; China's patent new technologies and products Expo Silver, Silver China's new products; Hebei Science and Technology Progress award; consumer trust Product Award; Hebei Province Outstanding new product award.

SG系列辊式研磨机获国家实用新型专利；深港博览会金奖；中国专利新技术新产品博览会银奖，中国新产品银奖；河北省科学技术进步一等奖；消费者信得过产品奖；河北省优秀新产品一等奖。

Rolls Royce had to pull the name of its newest addition to the Silver Cloud line, which they tentatively named the "Silver Mist," since in German,"mist" means manure.

劳斯莱斯的名字已经撤除其最新的银云线他们暂时定名为&银雾&，因为在德国的&雾&意味着肥料。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。