传送带下沉重的钢滚筒the heavy steel rollers under the conveyor belt这个大齿轮带动小齿轮使滚筒旋转.This large gear turns the small one to rotate the cylinder.粉碎辊是波纹式滚筒, 还常是螺旋割纹式.These rolls are corrugated cylinders, usually of the spiral type....
He emerged from the dark recesses of the garage.他从车库的暗处走出来。From the recesses of his coat Richard produced a bottle of champagne.理查德从大衣里面掏出了一瓶香槟。I could see the inmost recesses.我能看见最深处....