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Description of design：According to the special conditions of the developing countries and some life habit, the health condition of fundamental facility for a sitting stool and the combination of the basin that wash gargle solution cannot be lowered or sitting for long in the design ,make the person`s leg pressure release .Solve poor and disadvantaged groups ,in the don`t have to change the basic facilities ,the low cost design can only for at ordinary times life can play a very good improvement.
East China Jiaotong University