true - unco
- two-circle goniometer
- two-compartment furnace
- two-component alloy
- two-component burden
- two-component eutectic
- two-conductor shielded cable
- two-deck oven
- two-dimensional array
- two-dimensional diffraction grating
- two-dimensional flow
- two-dimensional grating
- two-dimensional heat flow
- two-dimensional lattice
- two-dimensional network of atoms
- two-dimensional nucleation
- two-dimensional nucleation kinetics
- two-girder crane
- two-gun oscilloscope
- two-handed hammer
- two-high
- two-high bloomer
- two-high blooming mill
- two-high blooming mill train
- two-high cogging mill train
- two-high mill
- two-high mill stand
- two-high reversing mill train
- two-high roller leveller
- two-high rougher
- two-high roughing stands in train
- two-high scale breaker
- two-high universal mill train
- two-hose (gas) cutter
- two-hose cutting burner
- two-level shop
- two-lip (hand) ladle
- two-man ladle
- two-motor winch
- two-operator vertical welding
- two-parameter objective function