... 球形金属把手 Knobs of metal 铜环 Copper rings 大头针（金属物件） Pins [hardware] ...
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Motor copper rings 电机铜环
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。
He looked at the two in the dark with flashing lights under the gentle radiance of copper rings, was nose acetify.
他看着两枚在昏暗灯光下闪着质朴光芒的铜戒指，禁不住鼻子发酸。
This is a piece of copper foil 20cm square that has 696 rings, a portion of which is reproduced above.
ECONOMIST: The search for alien life
Fourth, sell diamond rings to college students and fifth, send computer data over copper electric wires.
FORBES: Barnacles, Diamonds and Cows: 5 Startup Failures--My 5 Lessons Learned
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