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2. Other English version GB Standards are not ready translated, only after get your order, then we translate them, time usually need 3-5 days . |
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GB/T 38374-2019 Operational index system of urban rail transit 城市轨道交通运营指标体系 - 中英文版 |
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GB/T 38438-2019 Operational evaluation index system for electric power communication network 电力通信网运行评估指标体系 - 中英文版 |
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