每个中心站管理控制半径在80公里左右，对行车和维修全部负责。
Each of these stations will be totally responsible for the trains' running and maintenance in an area within a radius of 80 km.
要为页面添加半径控制，为页面添加一个标签，该标签对您想要支持的每个半径值都提供选项。
To add a radius control to the page, add a tag to the page with options for each of the radius values that you want to support.
具有下拉字段以控制搜索半径的文章列表的屏幕截图。
Screen capture of a list of articles with a drop-down field to control the search radius.
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