0.8 元券
![【官方正版】 移动通信频谱技术与5G频率部署 9787121381898 马红兵 ... [等] 编著 电子工业出版社](https://img.alicdn.com/bao/uploaded/i1/2057820096/O1CN010fIbmN1Ca136NlFiL_!!4611686018427385792-0-item_pic.jpg_280x380xz.jpg)
1 元券
4 元券
![d[s271585352]](https://wwc.alicdn.com/avatar/getAvatar.do?userId=1266927709220992){kind=avatar}
4 元券
![d[s446599011]](https://wwc.alicdn.com/avatar/getAvatar.do?userId=144257313108146691){kind=avatar}
1 元券
![移动通信频谱技术与5G频率部署 马红兵 ... [等] 编著 9787121381898](https://img.alicdn.com/bao/uploaded/i2/2528756451/O1CN01pGPJsO1xWc35i2qmd_!!4611686018427380451-0-item_pic.jpg_280x380xz.jpg)
1 元券
1 元券
0.9 元券
0.9 元券
1 元券
5.2 元券
![d[s325694778]](https://wwc.alicdn.com/avatar/getAvatar.do?userId=4764809932758523424){kind=avatar}
3.1 元券
2.7 元券
3.6 元券
0.8 元券
1 元券
10.9 元券
![d[s235110021]](https://wwc.alicdn.com/avatar/getAvatar.do?userId=72129365090173490){kind=avatar}
7.5 元券
8.1 元券
8.1 元券
8.1 元券
1.3 元券
![d[s292174433]](https://wwc.alicdn.com/avatar/getAvatar.do?userId=4764810478353603761){kind=avatar}
