哈格尔施泰因是麻省理工学院电子工程专业的副教授。他说，现有的固态装置在把热能转换成电能时的效率不高。
Hagelstein, an associate professor of electrical engineering at MIT, says existing solid-state devices to convert heat into electricity are not very efficient.
如今， 哈拉格普尔理工学院教授古哈领导的团队根据蟑螂心脏的工作原理研发出了一种人工心脏，他们声称此心脏能长时间高效正常工作，且价格能为大众所承受。
Now a team led by Sujoy Guha of the Indian Institute of Technology, Kharagpur, has created an artificial human heart based on a cockroach's, which they believe will be unusually robust and affordable.
如今， 哈拉格普尔理工学院教授古哈领导的团队根据蟑螂心脏的工作原理研发出了一种人工心脏，他们声称此心脏能长时间高效正常工作，且价格能为大众所承受。
Now a team led by Sujoy Guha of the Indian Institute of Technology, Kharagpur, has created an artificial human heart based on a cockroach's, which they believe will be unusually robust and affordable.
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