DIN EN 16601-60
Space project management - Part 60: Cost and schedule management
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发布日期 :
2001-12-01
实施日期 :
ITU-T D.Sup2
Method for carrying out a cost price study by regional tariff groups
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发布日期 :
2025-11-01
实施日期 :
ITU-R BS.415
Minimum performance specifications for low-cost sound-broadcasting receivers
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发布日期 :
2001-07-01
实施日期 :