| 1. | The " xin - 8 " transposltion system for open - wire telecommunication lines
电信明线新8式交叉制式 |
| 2. | The " xin - 4 " transposltion system for open - wire telecommunication lines
电信明线新4式交叉制式 |
| 3. | Bright line counting chamber
明线计数池 |
| 4. | Aerial open wire line
架空明线线路 |
| 5. | Aerial open wire
架空明线线路 |
| 6. | Grading standard for quality of carrier telephone equipment . 12 - channel carrier telephone over wire equipment
载波电话设备质量分等标准明线. 12路载波电话设备 |
| 7. | Grading standard for quality of carrier telephone equipment . 3 - channel carrier telephone over cable equipment
载波电话设备质量分等标准.明线电缆3路载波电话设备 |
| 8. | Grading standard for quality of carrier telephone equipment . open wire high band 3 - channel carrier telephon equipment
载波电话设备质量分等标准.明线高频3路载波电话设备 |
| 9. | Grading standard for quality of carrier telephone equipment . open wire high band 12 channel carrier telephone equipment
载波电话设备质量分等标准.明线高12路载波电话设备 |
| 10. | Standard for quality inspection and evaluation of pertoleum construction engineering telecommunication engineering toll open - wire line engineering
石油建设工程质量检验评定标准通信工程长途通信明线线路工程 |
