- flexible manufacturing system software
- flexible packaging printing
- flexible pavement design
- flexible planning
- flexible polyhedron
- flexible protection material for spacecraft
- Flexible Response
- flexible retaining structure
- flexible ring
- flexible riser
- flexible rotor
- flexible Sensor
- flexible space capsule material
- flexible spacecraft control
- flexible specialization
- flexible spreader
- flexible supply chain network
- flexible thin slab rolling
- flexible tooling technology
- flexible tube printing
- flexible type wave power generator
- flexible work time
- flexion
- flexion crease
- flexion reflex