您要查找的是不是：
- Study on Silver Extraction from the Refractory Silver Concentrate of a Certain Silver Mine, Guangxi 广西某难选冶银矿提银工艺研究
- refractory silver concentrate 难处理银精矿
- Introduce the situation about the quality standard of silver concentrate,silver ingot,silver products and the developing stardardization work. 介绍了我国银精矿、银锭及银制品相关的产品质量标准情况,以及即将开展的标准化工作情况。
- The locked cycle tests mainly based on collector H-4 and activator NS-6 demonstrate that silver concentrates grade are 0.45% at 84.5% Ag recovery. 以H-4为捕收剂、NS-6活化剂为主的用药制度下的闭路实验结果表明，银回收率达84.;5%25，银精矿品位为0
- The effects of variables on gold and silver recoveries in cyanidation lea-ching of silver concentrates have been investigated. 研究了银精矿氰化浸出过程中诸因素与金银浸出率的关系，确定了高氰化物浓度的物合浸出条件。
- Rolex Oyster Perpetual Datejust Watches. 36mm stainless steel case, 18K pink gold fluted bezel, silver concentric dial, arabic hour markers, and stainless steel and 18K pink gold Jubilee bracelet. 劳力士牡蛎永久单日历系列手表，36毫米直径不锈钢表壳；18K粉红色金槽型条纹表盖；银色同心表盘；阿拉伯数字时间刻度；不锈钢与18K粉红色金组合型银禧表带。
- Keywords silver concentrate;carbonaceous gold ore;sulfating roast;leaching; 银精矿;碳质金矿;硫酸化焙烧;浸出;
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- She wore a silver chain around her neck. 她脖子上戴着一条银项链。
- They have some sterling silver cutlery. 他们有一些标准纯银餐具。
- It's too hot to concentrate on book. 热得不能集中心思看书。
- He put the candle on the silver candlestick. 他把蜡烛放在银烛台上。
- I must concentrate my energies on decorating today. 我今天必须集中精力搞装饰。
- Workers are removing impurities from silver. 工人们正去除银中的杂质。
- I can't concentrate on my work when I'm tired. 我累了就无法集中精力工作。
- He found the chest to contain silver coins. 他发现那囗箱子装着银币。
- She won a silver trophy for shooting. 她在射击比赛中获得银奖。
- Don't put me off when I'm trying to concentrate. 我正要集中注意力呢，别打搅我。
- The burglars made away with all our silver. 窃贼带着我们所有的银子逃走了。
- We must concentrate our attention on efficiency. 我们必须把注意力集中在效率上。
