首都功能核心区
the core area of the capital

China has approved a detailed plan for the core area of the capital city of Beijing for the 2018-2035 period, stressing its functions of serving central administrative organs as well as the firm and orderly relief of its non-capital roles.
首都功能核心区控制性详细规划（2018年-2035年）近日获批，规划强调要服务保障中央政务，有序疏解非首都功能。