top top edge top margin
crutch boom [= boom rest
kind of top hollow and top full
boom socket [= boom step]
cargo boom {single travelling boom}
100 t Top and Bottom Combined Blown Converter
180 t Top-Bottom Combined Blow Converter
3-parallel bunker bell-less top
a knot of hair on top of head
above top floor and underground position
adding peg-top azimuths surveyed
adding steel stories on the top