奥巴马星期五在宾夕法尼亚州匹兹堡的卡内基-梅隆大学发表讲话，并观看微型机器人水下探索和检查下水管道是否有泄漏和裂纹。
He gave the address at Carnegie Mellon University in Pittsburgh, Pennsylvania, where on Friday he watched a display of mini-robots that explore water and sewer pipes looking for leaks and cracks.
宾夕法尼亚州匹兹堡卡内基·梅隆大学海兹学院的Alessandro Acquisti领导这项研究。
Alessandro Acquisti at Carnegie Mellon University's Heinz College in Pittsburgh, Pennsylvania, led the study.
这种全面看待妇女的口腔健康是“非常聪明的，”宾夕法尼亚州匹兹堡大学的牙医和遗传学家Alexandre Vieira说。
This comprehensive view of women's oral health is "very smart," says dentist and geneticist Alexandre Vieira of the University of Pittsburgh in Pennsylvania.
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