2月4日，长白山边防无人区执勤官兵在林海雪原中执勤巡逻。春节将近，长白山腹地无人区茫茫林海雪原中的边防官兵以一家不圆圆万家的情怀守卫在边境线上。新华社发（刘鸣 摄）      February 4,,Changbai mountain border no man's land duty officers and soldiers in linhai snowfield in patrol duty.The Spring Festival nearly,The vast hinterland of changbai mountain areas where the snowfield border officers and soldiers in a round tens of thousands of feelings on the border guards.The xinhua news agency hair(LiuMing perturbation)