... local automatic circuit exchange 市内自动线路交换(机) local battery telephone set 自给电池式电话机 local burst mode 局部分段式(信号传送) ...
2
?磁石电话机
...磁石电话机 local battery apparatus; local battery telephone set; magnetic telephone a aratus; magnetic telephone apparatus; magneto telephone set 打字电话机 printer telephone set .