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7 个月
LTE-M、NB-IoT、LTE Cat-1,如何选择?
LTE Cat-1具有更高的网络容量,能够以统一的连接技术实现全球部署,因此灵活性大大提高。 2G/3G的替代方案 由于世界上许多国家和地区已经关闭了2G ...
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