Rollan罗兰
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 steel of building建筑钢材
roll announcement column滚动公告栏
rolling bearing oil seal滚动轴承油封
roll out the welcome mat热烈欢迎; 盛情接待
roll surface flexibility辊面挠度
roll gap adjustment unit辊缝调整装置
rolling elements bearing滚动轴承
rolled edge handkerchief卷边手帕
roll-forming technique辊弯成型工艺
Roll up ones sleeve v.卷起袖子,准备行动。