preventionaladj.阻止的
preventionn.阻止;妨碍;预防
prevention of cruelty to animals防止虐待动物
prevention and reducing disaster防灾减灾
prevention and cure of landslide滑坡治理
prevention and ventilation smoke防排烟
Prevention and control knowledge防治知识
prevention of pests and diseases病虫害防治
prevention of parasitic diseases寄生虫病预防
prevention and control principles防治原则