共 50 条
- [1] DETERMINATION OF TUNGSTEN IN MINERAL RAW-MATERIAL BY AC POLAROGRAPHY INDUSTRIAL LABORATORY, 1984, 50 (09): : 845 - 849
- [2] THE MINERAL RAW-MATERIAL BASIS OF THE BAM-DISTRICT ZEITSCHRIFT FUR ANGEWANDTE GEOLOGIE, 1981, 27 (08): : 353 - 355
- [4] TABLETTING OF STANDARD SPECIMENS OF THE COMPOSITION OF A MINERAL RAW-MATERIAL INDUSTRIAL LABORATORY, 1992, 58 (02): : 132 - 135
- [8] PURITY IS WHAT COUNTS - SILICON - A RAW-MATERIAL FOR ELECTRONICS UMSCHAU DAS WISSENSCHAFTSMAGAZIN, 1982, 82 (05): : 162 - 165
- [9] STATE MONOPOLISTIC POLICIES OF FRG TO ENSURE MINERAL RAW-MATERIAL IPW BERICHTE, 1977, 6 (03): : 62 - 66