| 1. | Two-stage chromate reduction has been used at several plants .
一些厂已采用两段铬酸盐还原法。 |
| 2. | Smelting reduction process of high speed steel
熔融还原法冶炼高速钢 |
| 3. | Recovery gold from waste solution containing trace gold by solvent extraction
亚硫酸钠还原法在黄金生产中应用的探索 |
| 4. | Comparative test on measuring nitrogen content in nitrate nitrogen by reduction
还原法测定肥料中硝酸态氮含量的比较试验 |
| 5. | Research of development of reaction reducing so2 into s by way of catalyzing reduction
催化还原法转化二氧化硫生成硫的研究进展 |
| 6. | Calcium reduction route
钙还原法 |
| 7. | Metallic powders - determination of oxygen content by reduction methods - general guidelines
金属粉末.用还原法测定氧含量.第1部分:通则 |
| 8. | Tests for general properties of aggregates . part 2 : methods for reducing laboratory samples
集料一般特性试验.第2部分:实验室样品还原法 |
| 9. | Test method for total sulfur in gaseous fuels by hydrogenolysis and rateometric colorimetry
用还原法和比色法对气体燃料中总硫含量的试验方法 |
| 10. | Metallic powders . determination of oxygen content by reduction methods . part 1 : general guidelines
金属粉末.还原法测定氧含量.第1部分:通用指南 |
