ALIT. Equipment located in a Central office which sequentially tests lines in the office for battery crosses and grounds.
放置在市话局的设备，对市话局的线路进行电池交叉和接地测试。
Equipment located in a Central office which sequentially tests lines in the office for battery crosses and grounds.
放置在市话局的设备，对市话局的线路进行线路交叉测试和对地测试。
Equipment located in a Central office which sequentially tests lines in the office for battery crosses and grounds.
放置在市话局的设备，对市话局的线路进行线路交叉测试和对地测试。
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