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Frequency comparison pilot series for the FDM systems in the toll communication network
Translate name
STANDARD published on 17.7.1984
Designation standards: GB/T 4575-1984
Note: WITHDRAWN
Publication date standards: 17.7.1984
SKU: NS-884673
Country: Chinese technical standard
Category: Technical standards GB
Latest update: 2025-12-17 (Number of items: 2 252 317)
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