The first generation of analog technology, which is what we call the cellular phone, the signal is not good, security is poor, expensive fees 翻译结果2复制译文编辑译文朗读译文返回顶部 Imitate the technology while being the 1st generation of, i.e. the mobile telephone that we speak, the signa...
aFirst generation cellular and cordless telephone systems were based on analog FM technology and designed to carry narrow-band circuit switched voice services. 第一代多孔和无绳电话系统根据模式FM技术并且被设计运载窄频带电路开关的声音服务。 [translate] ...
First generation or 1G refers to analog technology on which cellular networks originated. First- generation GM crops are convenient and therefore attractive to modern farmers.However, many consumers are increasingly worried about the health implications of GM grains. Ordering of indicators Third generation...
a1987年11月,广州在全国率先开通了首个模拟移动电话系统,模拟移动电话属第一代移动通信技术,以蜂窝状无线电技术为基础,这就是俗称“大哥大”或“大水壶”的第一批手机。2002年1月1日零时起,广东关闭模拟移动电话网。 In November, 1987, Guangzhou cleared the first simulation mobile telephone system in the nat...