- Studies experimentally the pressure drop of two common kinds of flexible duct in fully extended state and obtains their absolute roughness.
- The air temperature and absolute roughness are key factors affecting frictional resistance of brick or concrete ducts for pressurization air supply systems and exhaust smoke systems in high-rise buildings.
- Roughness of the skin can be caused by bad diet.
- That hill's an absolute doddle (to climb).
- This rough track will soon be a metalled road.
- We now have the absolute proof of his guilt.