ultra long-haul
短语词组
- multi -span ultra-long-haul 多跨段超长距离
- Single -Span Ultra-Long-Haul SS-ULH 单跨段超长距离
- Multi -Span Ultra-Long-Haul MS-ULH 多跨段超长距离
- ultra long -haul optical transmission technology 超长距离光传输技术
- ultra -long haul transmission 超长距离传输 返回 ultra long-haul