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- Her ruby necklace brightened her face. 红宝石项链照亮了她的脸庞。
- The ring has a ruby in a silver setting. 这枚戒指的银底座上镶着一块红宝石。
- The chemical symbol for copper is "Cu". 铜的化学符号是Cu。
- What color is copper sulphate solution? 硫酸铜溶液是什么颜色?
- Copper and gold are both metals. 铜和金都是金属。
- Copper has less resistance than lead. 铜的电阻比铅的小。
- ruby copper 赤铜矿
- What color is copper sulfate solution? 硫酸铜溶液是什么颜色?
- A copper coin formerly used in India and Pakistan. 安那旧时在印度和巴基斯坦使用的铜币
- Ornamental copper pans hung on the wall. 墙上挂着装饰性的铜盘。
- This mountain road leads to the copper mine. 这条山路通向那个铜矿。
- Brass is an alloy of copper and zinc. 黄铜是铜和锌的合金。
- We fuse copper and tin to make bronze. 我们把铜和锡熔制成青铜。
- They will mine copper there in the valley. 他们将在那边的山谷开采铜矿。
- Brass is formed by the fusion of copper and zinc. 黄铜是由铜和锌熔合制成的。
- The value of diamond is above ruby. 钻石的价值比红宝石高。
- Copper conducts electricity better than iron does. 铜的导电性比铁强。
- She reset a ruby in her necklace. 她在她的项链上重新镶上一块红宝石。
- The genie gave her a big, shiny ruby. 精灵给她一颗又大又闪亮的红宝石。
- The ring has a ruby in a silver setting . 这枚戒指的银底座上镶著一块红宝石.