求翻译：保定市地处河北省中部，地处京、津、石三角腹地，市中心北距北京140公里，东距天津145公里，西南距河北省会石家庄125公里。保定是一座有2300年历史的文化名城。保定是京师门户，曾“北控三关，南达九省，地连四部，雄冠中州”，历史上燕国、中山国、后燕立都之地，清代八督之首，为“冀北干城，都南屏翰”。现为大北京经济圈中的两翼之一，北京主要卫星城，素有“京畿重地”、“首都南大门”之称。是什么意思？

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Located in the Baoding City, Hebei Province located in central Beijing, Tianjin, Shek 3 hinterland city center, 140 km north from Beijing, Tianjin 145 km, the distance from Southwest will Shijiazhuang Hebei Province 125 kilometers away. baoding is a 2300 historical cultural city. " had Jingshi porta

Baoding is situated at middle Hebei Province, is situated at Beijing, Tianjin, the stone triangle center, the town center northing Beijing 140 kilometers, east is apart from the Tianjin 145 kilometers, the southwest is apart from%2

Baoding is located in the central part of Hebei province, is located in Beijing, Tianjin, stones River Delta hinterland, downtown Beijing 140 km North East to Tianjin 145 km, 125 km southwest from the Hebei provincial capital Shijiazhuang. Baoding is a 2,300 year old cultural city. Baoding is Metrop