这是cableTV的接线盒，现在基本没人用了。是无源同轴电缆，没有危险。

来源: 大阿牛于 2023-09-17 13:52:51 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.