National regional trial
National regional varietal trial
the national trails system
carrying out national requirements in national defense
Baoding Regional differences Economic developing synthetical order Econormic regional coefficient of variability Economic developing total Z index
11th Chinese national games
11th Five-Year Plan national major scientific and
16th National Congress of CPC
1980 National Coordinate System
1997 National Conference
2(superscript nd) generation National Health Insur
2000 National Geodetic Coordinate System
2002 National Nutrition and Health Survey