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private manual branch exchange
private manual branch exchange
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[private manual branch exchange]
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[private manual branch exchange]
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[电] 专用人工交换分机
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单词结构:
private manual branch exchange
字母数:30
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单词拼写:private manual branch exchange
核心含义:[电] 专用人工交换分机
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更新时间:2026-02-07 05:08:59