GB/T 39744-2021基于三维模型的机械产品电子手册编制通用要求标准
英文:General requirements of mechanical product electronic manual based on three-dimensional model GB/T 39744-2021介绍: 国家标准...
英文:General requirements of mechanical product electronic manual based on three-dimensional model GB/T 39744-2021介绍: 国家标准...