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English TranslationIndusLaboratoryMaterials TestingChemical AnalysisSpectral AnalysisSpectral DeterminationSpectrum AnalysisMathematical ModelsSteel TestingMechanical PropertiesSpectrophotometric DeterminationSteel AnalysisTesting ApparatusOre AnalysisPhase AnalysisMaterial TestingPolarographic DeterminationX-ray FluorescentForeign Literature