经皮酒精注射
percutaneous ethanol injection
水处理实验
water treatment experiment
水处理微生物
water treatment microorganism
水处理系统
water treatment system
water processing system
water treatment
water handling system
water disposal system
system of water treatment
水处理效果
water treatment efficiency
water treatment effect
水处理药剂
water treatment agent
water-treament agent
Water treatment chemicals
wastewater treatment agent
water treatment agents
sewage treatment reagents
水处理专用设备
Special equipment for waste water treatment