双列圆柱滚子轴承 NN ; Double row cylindrical roller bearings
单列圆柱滚子轴承 single row roller bearing ; single-row cylindrical roller bearings ; ROLLER BEARING
四列圆柱滚子轴承 FCDP
四列圆锥滚柱轴承 four-row tapered roller bearing ; row tapered roller bearing
单列短圆柱滚子轴承 single row cylindrical roller bearing
错列圆柱 staggered cylinders
四列圆锥滚柱 four-row tapered roller bearing
单列短圆柱滚子 single row cylindrical roller bearing
圆列柱廊 circular peristyle
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