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Science popularization activities
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Home laboratory
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Science popularization activities
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Scientific DIY
看见声音
看见声音 需要准备 1. 一张塑料纸 2. 一根橡皮筋 3. 一只塑料碗 4. 一只平底锅 5. 一把木勺子 6. 粗盐 如何操作? 1. 将塑料纸盖在小塑料碗上,将其完全展平并用橡皮筋固...
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