地球化学标准物质
geochemical standard materials
地球化学标准物质研制
geochemical certified reference material
黄土地质标准样品
geologic standard sample of loess
DNA标准物质
DNA standard reference materials
苯气体标准物质
benzene gas standard material
标准物质
standard reference material
standard substance
Reference material
CRM
reference materiak
working standard
Certified reference material
certified reference materials
Standard substances
Standard reference materials
standard material
normal substances
standard materials
reference materials
neutron activation analysis
Acetyl-3-methylpyrazine
comparison substance
Acetylacetaldehyde
standard referencee material
Nucleic acid reference materials
Reference material RM
cattle serum
Actinomycotic septicaemia
Reference matrials
certified reference material CRM
reference matrial
standard matter
标准物质定值
the fixed value of standard substance
标准物质基体差异性
the reference materials matrix effect difference
标准物质使用体系
using system of standard material
标准物质体系
reference materials system
标准物质信息库
data bank on reference materials
标准物质研制
preparation of certified reference material