2001年进一步规范了官方抽样程序。
抽样程序
sampling procedure
暂无补充释义。
相关例句
相关词条
stratified random sampling
quota sampling
Sampling procedures and charts for inspection by variables for percent nonconforming
sampling bias
sample survey【数】;sampling inspection【数】;sampling survey【数】
choice of sampling unit
nonreplacement sampling
ocular fluid sampling