| 1. | Protectors for paired conductor communication circuits 双芯导线通信电路用保护器 |
| 2. | A chaotic circuit for secure communication with low noise 低噪声的混沌保密通信电路 |
| 3. | Secondary protectors for communication circuits 通信电路的辅助保护装置 |
| 4. | Protectors for coaxial communications circuits 同轴通信电路用保护器 |
| 5. | Protectors for coaxial communications circuits 同轴通信电路用保护器 |
| 6. | Standard for safety for protectors for paired conductor communications circuits 双导线通信电路保护器的安全标准 |
| 7. | Communications circuit accessories 通信电路附件 |
| 8. | Network communications circuits 网络通信电路 |
| 9. | Regulation of communication channel design for hydrological data acquisition system 水文自动测报系统通信电路设计规定 |
| 10. | Communication circuit chip 通信电路芯片 |