球面滚子轴承是双列，自我包含的单位，包括坚实的外圈与凹面滚，固体和内圈与辊每桶笼。
Spherical roller bearings are double-row, self-containing units that comprise solid outer rings with a concave raceway, solid inner rings and barrel rollers with cages.
回转式破碎机的破碎功能是通过偏心回转辊和固定凹面破碎板组成的破碎腔来实现的。
Crushing functions of a rotary crusher are achieved by its crushing cavity consisting of an eccentric rotary roller arid a fixed notch crushing plate.
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