undr - VAR
- unstable equilibrium
- unstable filter
- unstable focus
- unstable lubrication
- unstable machining
- unstable oscillation
- unstable system
- unstable zero
- unstacking
- unstainable metal
- unsteady
- unsteady motion
- unsteady state
- unstraight
- unstrained
- unstrained member
- unstress
- unstressed member
- unstressed spring
- unstucker
- unsupervised learning
- unsupported clamping
- unsupported length
- unsymmetrical bending
- untapered
- untarnishable
- untarnishable alloy
- untempered spring
- untended
- untended CNC machine tool
- untended machining
- untended manufacturing
- untended operation
- untended production
- untended run
- untended shift
- untight
- untightening
- untoward condition
- untrue
