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美国佐治亚理工学院宇航工程教授克里尚·阿休杰,发明了一种高效多用途消音材料,它由带微型小孔的中空小塑料珠子制成,能够消除从洗碗机到多用风扇等任何东西发出的噪声,以保持室内安静。
Krishan Ashok, a professor of aerospace engineering at Georgia Institute of Technology, invented an efficient, versatile muffler made of small, hollow plastic beads with tiny holes that eliminate everything from dishwashers to multi-purpose fans The noise emitted by something to keep the room quiet.