| 1. | The introduction of precious metals to pay for goods can be considered the forerunner of the foreign exchange market . 用贵金属来偿付货款,这可以称之为外汇市场的先驱形式。 |
| 2. | Institute of precious metals , kunming , 650221 云南昆明贵金属研究所,昆明, 650221 |
| 3. | Precious metals and its alloys designation system 贵金属及其合金牌号表示方法 |
| 4. | Development of precious metal jewelery testing in china 我国贵金属饰品成色检验进展 |
| 5. | 18k gold contains more precious metal than 14k gold 凡经过提炼的黄金称为“熟金” 。 |
| 6. | Study on three - way catalyst containing less precious metal 金属载体催化剂的涂层研究 |
| 7. | Filler precious metal and their alloy brazing materials 贵金属及其合金钎料 |
| 8. | Composite material strips of precious metals and their alloys 贵金属及其合金复合带材 |
| 9. | Specification for dental wrought precious metal alloy wire 牙科用精制贵金属合金丝规范 |
| 10. | Of precious metals , of rare - earth metals , of 服装饰品,编织或钩织95 , 462 |