| 1. | Specification for general requirements for wrought precious metal 锻压贵重金属一般要求规范 |
| 2. | Contacts , electric , of precious metal 贵重金属电器插头 |
| 3. | Because of this scarcity , most pearls today are cultured pearls 没有贵重金属的显贵,也缺乏钻饰璀璨的光芒。 |
| 4. | And then in the seventh century we had money in the form of precious metal 另外在七世纪时出现了贵重金属货币。 |
| 5. | Jewellery ; fineness of precious metal alloys iso 9202 : 1991 ; german version en 29202 : 1992 珠宝.贵重金属合金的钝度 |
| 6. | Weighing requests and equip weighing instrument of the noble metal and the gem 贵重金属及宝石的称量要求和配备衡器 |
| 7. | Precious metals - the finenesses of solders used with precious metal jewellery alloys 贵重金属.贵重金属珠宝合金适焊性 |
| 8. | Gold is still a valuable metal but is often found in the mountain streams 金子仍然是一种贵重金属,但是常常能在山里的溪流中找到。 |
| 9. | Gold was a precious metal in ancient china , also denoting material wealth and rank 金是中国古代的贵重金属,也是阶级和财富的象徵。 |
| 10. | Gold was a precious metal in ancient china , also denoting material wealth and rank 金是中国古代的贵重金属,也是阶级和财富的象徵。 |