Asked | Open questions | Answered Points Date Pair Term / Answer given Level Status Gloss - Jan 17 '18 eng>fas ullage gas فضای خالی بالای گاز مایع در مخزن pro closed no - Jan 16 '18 eng>fas nozzle افشانک درون موتور pro closed no 4 Jan 15 '18 eng>fas Liquid Propellant موشک با سوخت مایع pro closed ok Asked | Open questions | Answered