loggia - make-up air
- loggia
- logging
- logging area
- logging crane
- logging road
- logical contouring
- long chord
- long column
- long dolly
- long duration load
- long float
- long hole
- long measure
- long nipple
- long objects
- long plane
- long rod
- long saw
- long span bridge
- long span structure
- long tab
- long tunnel
- long-cut timber
- long-distance heating
- long-duration loading
- long-duration test
- long-edged profile
- long-fibre
- long-handled
- long-handled spreader
- long-hole drilling
- long-lasting
- long-lasting repair
- long-radius bend
- long-radius elbow
- long-range
- long-range planning
- long-reach digging
- long-run production
- long-standing need