National Aeronautics and Space Administration
国家计量系统
national measurement system【计量】
暂无补充释义。
相关词条
National Center for Biotechnology Information，NCBI
national assembly
Nigerian National Petroleum Corp.【油气】
National Information Infrastructure\nNII\n计
NIH（NATIONAL INSTITUTE OF HEALTH）
State Commission of science and Technology for National Defense Industry
national academy