Georgian specialists promise to repair the damage at the gas pipeline that supplies Armenia with Russian gas by December 20 evening, ArmRosgazprom's Spokesperson Shushan Sardaryan told a PanARMENIAN.Net reporter. According to her, if the damage is repaired on time Armenia will receive full amount of gas in a day. "Presently Armenia receives Russian gas through a reserve branch 3 times less than the needed volume," Sardaryan said.