| 1. | He sported a pair of brass earrings . 他的耳朵上戴着一副铜耳环。 |
| 2. | Ornamental copper pans hung on the wall . 墙上挂着装饰性的铜盘。 |
| 3. | There were several doors with brass knobs . 那儿有好几扇门,门上有铜把手。 |
| 4. | Brass is an alloy of copper and zinc . 黄铜是铜和锌的合金。 |
| 5. | Copper-zinc alloys are called substitutional alloys . 铜锌合金叫做替代式合金。 |
| 6. | Cupric azide is insoluble in water . 叠氮化铜不溶于水。 |
| 7. | A thin sheet of copper is an example of a diathermic wall . 薄铜片就是一个“透热壁。” |
| 8. | Copper conducts electricity better than other materials do . 铜的导电性能比其他材料好。 |
| 9. | Iron casts better than copper . 铁比铜容易铸型。 |
| 10. | The government was obliged to suspend foreign copper shipments . 政府不得不暂停铜的外运。 |