开发这台机器的团队成员李启章告诉记者，他们的机器模型已经被放置在大学的一间教室里，运行得非常好。
Li Qizhang, a member of the team that developed the machine, told a reporter that a model of their machine had already been placed in a classroom building at the university and it worked very well.
李启章解释道：“我们用水来冲洗手上的各种污渍，发现95%的水都用于冲走污渍，只有5%的水用于溶解污渍。
We put different kinds of dirt on our hands and washed them with water. It turned out that 95percent of water is used to flush away the dirt; only 5 percent is used to dissolve it.
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