- Runyan classification system
- sistema de clasificaciуn de Runyan
English-Spanish medical dictionary . 2013.
English-Spanish medical dictionary . 2013.
Rudder — A rudder is a device used to steer a ship, boat, submarine, hovercraft, or other conveyance that move through a fluid (generally air or water). On an aircraft the rudder is used primarily to counter adverse yaw and p factor and is not the primary … Wikipedia