slippage - sound isolation
- slotted breakwater
- slotted eyes
- slotted floor
- slotted hood
- slotted outlet
- slotted plywood
- slotted rock bolt
- slotted screw
- slotter
- slotter pipe
- slotting
- slotting machine
- slough
- sloughing
- slow cement
- slow development of compressive strength
- slow filter
- slow flushing
- slow hardening of mortar
- slow lane
- slow motion
- slow order
- slow reaction
- slow rinse
- slow sand filter
- slow setting cement
- slow test
- slow traffic lane
- slow-breaking emulsion
- slow-burning construction
- slow-burning heavy timber structure
- slow-burning structure
- slow-release relay
- slow-responding relay
- slow-setting concrete
- slowdown
- slowing-down time
- sludge
- sludge ageing
- sludge asphalt