1. The physical separation and regrouping of members of a parliament according to their stand on an issue put to vote. 
   分组表决根据议员对某提案的表决态度而作的划分或分组
2. gravity separation of wastewater 
   废水重力分离处理法
3. mass transfer separation process 
   传质分离过程
4. polymeric membrane for separation 
   高分子分离膜
5. rubbing and spring separation 
   摩擦与弹跳选

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