Generally,air combat is broken into three regions: beyond visual range(BVR),within visual range(WVR),and close-in air combat(CIAC).
一般地,空战被分成三个区域:超视距、视距内和贴身空战。
Neighborhood Parks in Japan are called "Close-fitting Parks" because of its short service distance, permission at any time and being close to everyday life.
日本的近邻公园由于服务半径短、随时可以自由进入、离日常生活较近,被人们昵称为“贴身公园”。