rollupn.汇总
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
roll-cumulusn.[气]层积云
rolling-shoe辊履支承
roll-housing轧辊机架
rolling center活动顶尖
rolling weight滑锤
Roll-missile滚转导弹
rolling radius滚动半径
roll over back背上滚翻
roll-welding滚压焊
rolled bandage(成)卷绷带