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反变分量
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contravariant component
反变分量
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purposive sampling
purposive sampling
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purposive sampling
purposive sampling
purposive sampling survey
purposive selection
purposivism
purposivism
purposivism
purpura
purpura
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purpurinuria
purpurite
PUR--PUR (polyurethane)
purpus privet
purse cover
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purse ring
purse seine
purse seine hauling machine
purslane
purslane
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