Copper and its alloy, because of their excellent electrical and thermal conductivity and other properties, are important materials in industries.
铜和铜合金具有优异的导电、导热及其它性能，是重要的工业材料之一。
Copper and its alloy, because of their excellent electrical and thermal conductivity and other properties, are important materials in industries.
铜和铜合金具有优异的导电、导热及其它性能，是重要的工业材料之一。
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