The device is called motor copper rings.

这种设备叫电机铜环。

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Motor copper rings are a kind of lifting accessories.

电机铜环是起重配件的一种。

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Below, a photo of a woman recycling a piece of imported American scrap metal inside of an industrial-scale motor scrap recycling (and copper smelting) operation south of Shanghai.

下面是一个妇女的照片，她正在一家上海南部的工业汽车废物回收(和金属熔化)厂回收一件美国进口的废金属。

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With the environmental benefits of a hybrid come environmental costs: 30 extra pounds of copper, mostly in the motor windings, and 22 pounds of nickel in the battery.

FORBES: Feel Green, Feel Good

Putting more than half a million road miles on development versions of the Spark EV enabled engineers to make the performance of the electric motor the best it could be by using a bar wound copper stator and unique rotor configuration.

ENGADGET: Chevy Spark EV rated most efficient retail car with 82-mile range, 119 MPGe