1. sludge treatment and disposal 
   污泥处理和处置
2. To form lumpy or fluffy masses. 
   絮凝形成团状或棉絮状块
3. A thick, messy substance, such as sludge. 
   粘糊糊的东西粘稠肮脏的东西，如软泥
4. Something that has formed lumpy or fluffy masses. 
   絮凝物形成团状或棉絮状块的东西
5. Sludge disposal facilities should be installed for the need of sewerage treatment. 
   同时配套建设完善污泥处置系统。

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