stro - supr
- stroboscope
- stroboscopic tachymeter
- stroke
- stroke capacity / volume
- stroke limiter
- stroke-bore ratio; stroke ratio
- strong
- strong acids
- strong base
- strong caustic
- strong light
- strong solvent
- strong-box
- strongly caking coal
- strongly damped
- strontium
- strop
- strophoid
- struck capacity
- structural
- structural analysis / design
- structural change
- structural concrete
- structural defect
- structural frame
- structural iron
- structural lumber
- structural member
- structural rigidity
- structural shape
- structural statics
- structural steel
- structural strength
- structural timber
- structural viscosity
- structural weight
- structural wrench
- structural-steel shape
- structure
- structure conflict
