HJD-80 型 程控用户电话交换机操作 手册
HJD-80 型 程控用户电话交换机操
让对方看到暖心的句子
作手册 目录 概述
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............................. 3 1.1 概况
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............... 3 1.2 容量范围
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....... 3 1.3 本结构
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........... 3 1.4 打印接口
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....... 3 主要技术性能、技术指标
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............................................................... 4 2.1
交换制式：模拟空分制
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..................................................... 4 2.2 通话绳路：
8/16/
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2.3 终端条件：
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... 4 3.4 中继
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刘亦飞
............... 4 2.5 信号音
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........... 4 2.6 线路条件
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....... 4 2.7 传输
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............... 4 2.8 铃流及电源
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如何成为淘宝供货商
... 4 2.9 使用环境
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others是什么
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....... 5 2.10 服务功能总述
污污污的段子
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海的作文