cakera penggerak bahasa Inggris

• friction disc

• penggerak:    activator; chain drive; prime mover; railway
• cakera but:    boot disk
• penggerak:    activator; chain drive; prime mover; railway locomotive; lifter; locomotive engine; engine; propulsion; booster rocket; plugger; booster shot; booster amplifier; takeoff booster; relay transmitter;