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				           		PAFS的絮凝效果优于市售的聚合氯化铝和高效复合铝铁。
						        					            	 The flocculent effect of PAFS is superior to that of polymeric aluminum chloride and composite aluminum ferric in market.
								    										 
								    				            	 youdao 
- 
				           		PAFS的絮凝效果优于市售的聚合氯化铝和高效复合铝铁。
						        					            	 The flocculent effect of PAFS is superior to that of polymeric aluminum chloride and composite aluminum ferric in market.
								    										 
								    				            	 youdao