【计】 卷轴式缩微胶卷

rock and roll

all-flower roll

roll-over credit【金融】

moxa roll moxibustion【中医】

roll-bonded cladding

cornice brake【机】;press brake【机】;roll bending machine【机】

web-roll core with arrangement for securing the ends of filamentary material

laminator roll for the manufacture of fibre-reinforced plastics