two stage sampling

同义词释义

1)two stage sampling,两阶段抽样法2)two-stage sampling,两阶段抽样法3)two stage,两阶段4)two-stage,两阶段5)two stages,两阶段6)two-stage system,两阶系统7)the first two moments,前两阶矩8)two stage method,两阶段法9)two-stage way,两阶段法10)two-phase,两阶段