应该是除了移动4g外的双网通，详细描述见链接，坛友1k到付https://market.m.taobao.com/app/idleFish-F2e/widle-taobao-rax/page-detail?wh_weex=true&wx_navbar_transparent=true&id=604393930746&ut_sk=1.XJoQCRHthooDACm9sttP3Xp3_21407387_1569725587983.Copy.detail.604393930746.47292489&forceFlush=1