复发性突发性听力损失
recurrent sudden hearing loss
突发性灾害
suddenly generated hazard
unexpected disasters
突发性水环境风险
emergency environment pollution risk
突发性水污染
burst water-pollution accident
unexpected water pollution
suddenly happened water pollution accident
sudden water pollution
Emergency water pollution
突发性水污染事故
sudden water pollution incident
accidental water pollution
突发灾害事故
unexpected disasters and accidents
突水灾害防治
disaster prevention of water inrush
渐发性灾害
gradually generated hazard
洪水灾害脆弱性
flood hazard vulnerability
暴雨洪水灾害
Flood Disaster Caused by Rainstorm