upstream channel
短语词组
- upstream approach channel 上游引航道
- upstream approach channel of lock 上游引航道
- hfc upstream channel hfc 回传系统
- upstream and downstream channel 上下行通道
- upstream adjacent navigation channel 上游引航道
- upstream channel in HFC HFC 上行通路
- debugging of upstream channel 回传通道调试 返回 upstream channel