请教一个声学问题,亥姆霍兹共振器到底是吸声还是扩声 知乎 Template




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Try and sketch some of theseRowboat, Hand, Snake, Bees, Love letter, Backpack, Pastrami, Rice, Fat guy, Saw, view more ideas


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tomski请教一个声学问题,亥姆霍兹共振器到底是吸声还是扩声 知乎 coloring