求翻译：是我国环渤海地区南翼和黄河中下游地区的中心城市，是国家批准的沿海开放城市和十五个副省级城市之一，是国务院公布的国家历史文化名城、中国软件名城、国家创新型城市之一。是什么意思？

China's Bohai and the Yellow River region south side of the central city, the state approved coastal open cities and 15 sub-provincial cities, the State Council announced the national historical and cultural city, China's software city, the national innovation cities.

正在翻译，请等待...

Is south our country link Bohai Sea area middle and lower reaches the wing and Yellow River the local key city, is the national authorization one of open coastal city and 15 vice-provincial level cities, is country of historical city, Chinese software famous city, one of national innovation cities w

Was middle-lower South and Huanghe River in Bohai region Center City was ratified one coastal city and 15 sub-provincial cities was State Council released a software city, national historical cultural city, China National innovative one.

Is China's Bohai region Center City in the South Wing and the middle and lower reaches of the Yellow River, is a State-approved coastal open cities and 15 sub-provincial cities, was published by national historical cultural cities of the State Council, China software city, one of the national innova