| 1. | Tdma cellular pcs - digital traffic channel layer 2
Tdma蜂窝式pcs .数字通信信道层2 |
| 2. | Digital traffic channel layer 1
数字通信业务信道层1 |
| 3. | Advances in research on thin film transistor using zno as the active channel layer
活性层薄膜晶体管的研究进展 |
| 4. | Digital traffic channel layer 3
数字业务信道层3 |
| 5. | Digital control channel layer 2
数字控制信道层2 |
| 6. | Digital control channel layer 3
数字控制信道层3 |
| 7. | Digital control channel layer 1
数字控制信道层1 |
