Q-basic oxygen process Q-BOP [きゅーびーおーぴー] (Q-basic oxygen process)
quantity of material per unit volume of concrete [たんいりょう]
quick setting admixture 急結剤 [きゅうけつざい]
quick setting 急結 [きゅうけつ]
quicksand クイックサンド [くいっくさんど]