main through line的意思|示意
美 / /
英 / /
主直通线路
main through line的网络常见释义
干线通行线 ... 干线通信 trunk communication 干线通行线 main through line 航线通信 airways communication ...
main through line相关短语
1、 through main line 直通干线
2、 main-line passing through 主线贯穿