National Aeronautics and Space Administration
国家空管系统
national airspace system\nNAS\n航
暂无补充释义。
相关词条
National Committee of the Chinese People's Political Consultative Conference (CPPCC)
National Center for Biotechnology Information，NCBI
national assembly
NIH（NATIONAL INSTITUTE OF HEALTH）
State Commission of science and Technology for National Defense Industry
NF（NATIONAL FORMULARY）
national legislation