Rollon罗利翁rolln.卷；滚动；名单；压路机；颤音；圆形物，面包卷v.摇摆；滚；绕；转动；展开rolled mild steel disk wheel轧制软钢实心轮roll-type uranium ore body卷状矿体Roll on the floor laughing.滚地板笑。roll characteristic parameter轧辊特征参数Rollover Protective Structure翻车防护结构roll-type briquetting press对辊式压制机Rolls with jam and honey?无级变速传动Rolling on the floor laughing笑得滚翻在地rolling program of devolution滚动式权力下放计划; 渐进式放权计划roll gap measuring instrument辊缝测量仪