Copper, brass, and aluminium are separated and remelted for reuse.

铜、黄铜和铝被分门别类重新熔化以供再利用。

《柯林斯英汉双解大词典》

That distinguishes them from synchronous motors that use a permanent magnet in their rotors instead of a set of aluminium or copper conductors.

这就把它们和在转子处使用永磁铁而非一套铝或铜导体的同步发动机区分开来。

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Like the base metals of copper, aluminium, zinc and nickel, speciality metals are driven by industrial activity.

与铜、铝、锌和镍等贱金属一样，特种金属也受到工业活动的推动。

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Thanks to high commodity prices, vacant homes in poorer neighbourhoods are quickly stripped of their aluminium sidings and copper fixtures.

ECONOMIST: America's property crisis

The force said recent price rises of copper and aluminium were thought to be behind the spate of incidents.

BBC: NEWS | UK | England | Southern Counties | Price rises 'behind metal thefts'

Failure to use the latest three-dimensional modelling software meant nobody anticipated the effect of using lightweight aluminium wiring rather than copper, which is to make bends in the wiring looms bulkier.

ECONOMIST: Airbus and EADS