滚轮 meaning in English

contact roller; trolley wheel (电车接电轮)

Sakers and aspirators separate the hull from the cracked cotyledons and rollers flake them .
皮壳与破碎的豆瓣，通过振动筛和吸壳器彼此分离，豆瓣由滚轮压成片。
Read about the request for mouse wheel support
中阅读关于鼠标滚轮支持的请求。
Rollers for switchgear and instrument transformers
开关设备和仪表互感器用滚轮
That indicates if the mouse has a scroll wheel
，它指示鼠标是否有滚轮。
Agricultural machinery ; rings for cambridge rollers
农业机械.坎布里奇cambridge滚轮用环

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