... copper alloy铜合金 copper casting铜铸件 copper constantan thermocouple铜 康铜热电偶 ...
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很适合于修理铜铸件。
是各种机械受力、耐磨铜铸件的理想替代材料。
The ideal materials to replace diverse mechanically stressed and abrasion-resistant brass casting components.
对铜铸件施以彩绘装饰是始于秦朝时期的新工艺。
Painted decoration on bronze casting was a new technique begun in Qin times.
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