GB/T 28827.7-2022信息技术服务运行维护第7部分:成本度量规范国家标准
英文:Information technology service—Operations and maintenance—Part 7:Cost measurement specification GB/T 28827.7-2022介绍: ...
英文:Information technology service—Operations and maintenance—Part 7:Cost measurement specification GB/T 28827.7-2022介绍: ...