stratified sampling
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hypostoichiometry,
hypostoma,
hypostomatal,
hypostomatic,
hypostomatous,
hypostome,
hypostracum,
hypostratum,
hypostroma,
hypostyle,
相似单词
straticulate,
straticulation,
stratification,
stratified,
stratified sample,
stratified sampling,
stratiform,
stratiformis,
stratify,
stratigrapher,