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- A large cooking pot made of copper or often of iron. 金属锅用铜或铁铸成的大煮锅。
- mixed copper ores 混合铜矿石
- And all can run on copper or fiber-optic cable. 所有这些均可在铜线或光缆上运行。
- Do you know which is heavier copper or silver? 你知道铜和银哪个重?
- An ancient Roman coin of copper or copper alloy. 阿斯古罗马一种铜硬币或铜。
- Corymbosa best to use copper or hammering. 最好使用铜棒或铜锤进行锤击。
- A coin, usually of small denomination, made of copper or a copper alloy. 铜币用铜或铜的合金制成的硬币，通常为小面值
- In ancient times the rulers ran copper or silver into coins. 古时候统治者把铜或银铸成钱币。
- Which is the most conductive: iron, copper or silver ? 铁、铜和银，哪种传导性最好?
- Man had known for several millennia how to mix copper and tin to make bronze-but why, why does this work so well? 几千年来，人们已经知道了怎么样混合铜和锡来制造青铜--然而，为什么，为什么这种混合效果这么好呢?
- Which is the most conductive: iron,copper or silver ? 铁、铜和银，哪种传导性最好?
- Which is the most conductive: iron, copper or silver? 铁、铜和银，哪种传导性最好?
- Speaking strictly the dragon grain is not mixed copper,but coppering.As for in Ming or Qing dynasty,you will know only by this dragon. 严格来说这夔龙纹也不是错铜，是鎏铜工艺。至于是明是清，单从这龙看就可明了。
- Aquatint:It is an etching process on copper or steel by means of nitric acid. 水彩色调:用硝酸在钢片或铜片上作腐蚀的蚀刻法。
- An opaque or semitranslucent brown glass flecked with small metallic particles,often of copper or chromic oxide. 金星玻璃一种不透明或半透明的棕色玻璃，掺有小的金属颗粒，通常为铜或氧化铬
- A large copper or brass hemispherical drum with a parchment head that can be tuned by adjusting the tension. 定音鼓一种大的半球形红铜或黄铜鼓，面为羊皮纸，能通过调整拉力调音
- An opaque or semitranslucent brown glass flecked with small metallic particles, often of copper or chromic oxide. 金星玻璃一种不透明或半透明的棕色玻璃，掺有小的金属颗粒，通常为铜或氧化铬
- The in-place bacterial leaching of stored copper ores in goave is a new technology of resource comprehensive recovery. 采空区存窿铜矿石就地细菌浸出技术是一项新的资源回收综合技术。
- Leaching of Cupric Sulphate from Mixed Copper Ore 从混合铜矿制取硫酸铜工艺研究
- LUGS WITH COPPER OR ALUMINIUM FLATS AND WITH CONDUCTING COATING FOR ALUMINIUM CONDUCTORS. REQUIREMENTS AND DIMENSIONS. 铝导线用带导电镀层的有铝片或铜片的接头。规则和尺寸。
