spac - spru
- space diagram
- space lattice
- space lattice form
- space lattice interference
- space metal
- space occupied
- space principle
- space strip
- space velocity
- space-group symmetry
- space-lattice point
- spaced butted
- spacer
- spacer plate
- spacer strip
- spacing of superdislocation
- spacing washer
- spade end
- spade guide
- spade half coupling
