夏末秋初,奥林匹克森林公园北园内,仍是骄阳似火,绿意正浓,放眼望去这片占地680公顷的城市仿佛城市绿洲,为市民提供休憩场所的同时,也提供了清新空气。而经常在这片公园里面锻炼、游玩的市民,会发现在这片绿海深处矗立着一座铁塔,有设备在不停运转,旁边能看到有数字显示屏 In the late summer and early autumn, the northern park in the Olympic Forest Park is still hot and green with thick green glazing. This 680-hectare city is like an urban oasis providing a place for rest and refreshment air. And often in this park which exercise, play in the public, will find in this green sea stands an iron tower, there are equipment in operation, next to see the digital display