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Continue to ChatNissan's "metamaterial", invention of the year? https://ergonoma.com/2021/01/nissans-sound-absorbing-acoustic-metamaterial-one-of-the-best-inventions-of-the-year/
Nissan's "metamaterial", invention of the year? https://ergonoma.com/2021/01/nissans-sound-absorbing-acoustic-metamaterial-one-of-the-best-inventions-of-the-year/