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美国航天工程学教授克里尚·阿赫加已经研制出一种防噪声材料,它是由许多空心塑料小球组成的,这些小球带有很多极细微的小孔,它能够消除从洗碗机到各式风扇所发出的任何噪声。
Krishan Ahgah, a professor of aerospace engineering at the U.S. Institute of Space Engineering, has developed a noise-resistant material consisting of many hollow plastic pellets with many tiny holes that eliminate the need to wash dishes Machine to all kinds of fan any noise emitted.