为什么都说四线城市几年内不能覆盖5G？来看看山东这个人口200万、GDP2900亿的城市的覆盖情况

首先是城区，分为中、西、东三个部分：

[img]https://img.nga.178.com/attachments/mon_202009/16/-7Q5-1aetK2qT1kShs-10x.jpg.medium.jpg[/img][img]https://img.nga.178.com/attachments/mon_202009/16/-7Q5-6cpcZbT1kShs-10x.jpg.medium.jpg[/img][img]https://img.nga.178.com/attachments/mon_202009/16/-7Q5-84b2ZbT1kShs-10x.jpg.medium.jpg[/img]
然后是垦利区：
[img]https://img.nga.178.com/attachments/mon_202009/16/-7Q5-kidmK2fT1kShs-10x.jpg.medium.jpg[/img]
再然后是利津县：
[img]https://img.nga.178.com/attachments/mon_202009/16/-7Q5-lbhpK20T1kShs-10x.jpg.medium.jpg[/img]
这个是广饶县和大王镇：
[img]https://img.nga.178.com/attachments/mon_202009/16/-7Q5-3k2lK2iT1kShs-10x.jpg.medium.jpg[/img][img]https://img.nga.178.com/attachments/mon_202009/16/-7Q5-duzlK2gT1kShs-10x.jpg.medium.jpg[/img]
河口区和东营港：
[img]https://img.nga.178.com/attachments/mon_202009/16/-7Q5-hbcdK1xT1kShs-10x.jpg.medium.jpg[/img][img]https://img.nga.178.com/attachments/mon_202009/16/-7Q5-9r2nK2fT1kShs-10x.jpg.medium.jpg[/img]
最后再看看隔壁市市区的覆盖情况：
滨州市，人口390万，GDP2400亿
[img]https://img.nga.178.com/attachments/mon_202009/16/-7Q5-38l1ZbT1kShs-10x.jpg.medium.jpg[/img]
所以，为什么说四线城市几年内不能覆盖5G？难道鲁北这两个市不是标准的四线？