杂质-杂质跃迁
imurity-to-impurity transition
差热分析温度标准物质
temperature standard material for DTA
臭氧空气品质标准
ozone air quality standards
纯度标准物质
purity of standard reference material
地质标准物质
geologic certified reference materials
arylaminomercaptotriazole
geochemical reference material
geological reference materials
geological certified reference materials
geological reference material
飞行品质标准
flying qualities criteria
灌溉用水水质标准
irrigation water quality standards