aids in the prevention of cavities  帮助防止蛀牙

AIDS prevention  艾滋病防控; 艾滋病预防; 艾滋病防治; 艾滋病; 健康知识

AIDS prevention and control  艾滋病防治; 艾滋病预防控制; 艾滋病防制; AIDS防制

AIDS prevention and control knowledge  艾滋病防治知识

AIDS prevention education  艾滋病预防教育; 预防艾滋病教育; 爱滋病防治教育

AIDS-prevention  艾滋病预防

funding of AIDS prevention and cure  艾滋病防治经费

Knowledge of AIDS prevention  艾滋病防治知识; 艾滋病预防知识

navigation aids in wind finding  导航测风

NCAVAE National Committee for Audiovisual Aids in Education  教育视听辅助手段全国委员会。

cave-in prevention  防塌

collapse prevention in mega earthquake  巨震不塌

disaster prevention in community  社区防灾

Faults and its Prevention in Anaesthesia  麻醉失误与防范

flood prevention in flood season  防洪渡汛

flood prevention in the oil field  油田防汛

Lightning prevention in the rural areas  农村防雷

Methods in prevention  防治措施

pillar in prevention gush-out water  防水煤柱