| 1. | Sdsl single - line digital subscriber line , single - line dsl
单绞线数字用户系统,对称数字用户回路 |
| 2. | High data rate digital subscriber line hdsl
高速数字用户回路 |
| 3. | Asymmetric digital subscriber line
非对称式数字用户回路 |
| 4. | High - bit - rate digital subscriber line
高速数字用户回路 |
| 5. | Asymmetric digital subscriber line
非对称数字用户回路 |
| 6. | Very high data rate dsl
超高速数字用户回路 |
| 7. | Dsl digital subscriber line
数字用户回路 |
| 8. | Sdsl symmetric dsl
对称性数字用户回路 |
| 9. | Digital subscriber line
数字用户回路 |
| 10. | Mdsl multi - rate
多速率数字用户回路 |
