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In the time of Dwelling Narrowness,there are many members but narrow space within family.
All behaviors are influential.People get up early to work maybe interrupt those who on night work ready to sleep in the morning.
The silent bucket are able to let the water flow follow the edge of bucket rather than strike the bottom.
It can decrease the sound and the impact to other to great extent.
ZengCheng college of South China Normal University,LuoGang District,GuangZhou City,GuangDong Provinc
GuangZhou City,Guang, China