three-grade prevention是什么意思


中文翻译三级预防

网络释义

1)three-grade prevention,三级预防2)triple prevention,三级预防3)three level preventical healthcare networks,三级预防保健网4)three-tier medical and preventive network,三级医疗预防保健网5)three scale school violence prevention system,三级预防与应对系统6)three grade prevention of intrauterine infection,宫内感染的三级预防

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