prevention of pollution 污染预防 ; 防止污染 ; 污染控制 ; 污染防治

prevention of pollution by garbage 防止垃圾污染

unified prevention of pollution 污染综合防治

prevention of pollution by sewage 防止污水污染

Prevention and control of pollution 污染防治

Prevention of Oil Pollution Regulations 防止油类污染规例

prevention of atmospheric pollution 防止空气污染

Prevention of oil pollution agents 防止油污剂

prevention of marine pollution 海洋污染防止