| 1 | This paper presents the recycling process of wastewater scouring feather with method of coagulation deposition and sand filtration in Chengmai Feather Factory. | |
| 2 | Hainan powder, has a long history in Haikou, Qiongshan, will be peaceful and Chengmai town residents eat more common, but also a symbol of auspicious festive must-longevity treasures. | |
| 3 | Conclusion Plague in the 8 cities and counties surveyed is at a resting stage. But control measures be taken as the principal hosts and vectors exist in wide areas. |
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