1. filtration equipment of wastewater 
   废水过滤设施
2. Water can be purified by filtration through sand. 
   水通过沙滤可以变清。
3. Surgical incision into an ovary, as to perform a biopsy or remove a tumor. 
   卵巢切开术切开卵巢的外科手术，如为施行活体检查或切除瘤
4. Relevant experts, agencies and investment banks will be invited to make project filtration,technology evaluation,market analysis and offer financial packagings.  
   邀请有关专家、中介机构和投资银行为技术交易提供项目筛癣技术评估、市场分析及融资包装等服务。
5. type genus of the Chlamydomonadaceae; solitary doubly-flagellated plant-like algae common in fresh water and damp soil; multiply freely; often a pest around filtration plants. 
   衣滴虫科的模式属；生长在淡水或潮湿土壤中的植物状生有双鞭毛的喜独居海藻；繁殖自由；常常对于筛选植物是有害物。

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