共 50 条
- [41] DEVELOPMENT OF THE MODERN ZINC RETORT IN THE UNITED-STATES TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, 1949, 185 (02): : 73 - 77
- [42] RATIO OF ZINC TO COPPER OF DIETS IN UNITED-STATES NUTRITION REPORTS INTERNATIONAL, 1975, 11 (03): : 237 - 242
- [43] THE END OF HORIZONTAL ZINC RETORTING IN THE UNITED-STATES CIM BULLETIN, 1983, 76 (850): : 99 - 101