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针对坝前拦污栅目前存在的问题， 在调查研究的基础上， 研制出新型结构的浮式拦污设备， 并进行现场冰冻实验， 收到了良好的效果。
In view of the existing problems of the trash rack in front of the dam, on the basis of the investigation and research, a new type of floating trash-cleaning equipment is developed and the on-site freezing experiment is conducted, and good results have been obtained.