充填长壁采煤法

decay missing filling surface, DMFS, dmfs

decay missing filling, DMF, dmf

filling equipment

filling with fluent solid material

filling balance, dosing scale, residual scale, valve sack scale

filling with liquids, plastic goods

sack filling and weighing machine (sacking weigher, bagging scale)

uneven filling【纺】;weft bar【纺】;