- 润滑油 rùnhuáyóu lubricating oiloil used to reduce friction, cool, and seal moving parts in machinery; lube
- 润滑剂 rùnhuájì lubricanta substance, such as oil, grease, or powder, applied between machine parts or surfaces to reduce friction and wear
- 润滑脂 rùnhuázhī lubricating greaselubricating grease; oleosol