katub-alas bahasa Inggris

• bottom flap

• katub setimbang:    balanced valve
• alas:    aduh; aduhai; alack; base; bed; bottom; coaster; pedestal; scratch pad; shod; understructure; substructure; stand; establish; floor; mat; theme; runner; fundament; lay; covering; basal; prop; alkali
• katub pembuka aliran:    release valve