茫茫东海有这样一支“铁军”,他们时而巧用各种手段插入“敌”眼皮底下,进行种种没有硝烟的对抗;时而穿梭于万里海疆,丈量海河湖泊,开辟各种航道……7年来,这支“铁军”东闯太平洋,南踏南中国海, The vast East China Sea has such an “iron army” who, from time to time, resorted to various tactics to insert under the “enemy” noses and carry out all kinds of confrontations without smoke and smoke; sometimes they flew across the vast seas and measured the rivers, lakes and seas and opened various watercourses ... In the past seven years, This “Iron Army” east of the Pacific Ocean, South China South China Sea,