베르누이 계단 만들기 5인용 세트/베르누이 실험 키트
<img alt="" src="https://ipx.image-gmkt.com/imageproxy/?src=http%3a%2f%2fai.esmplus.com%2fkit819%2f%25EB%25B2%25A0%25EB%25A5%25B4%25EB%2588%2584%25EC%259D%25B4%25EA%25B3%2584%25EB%258B%25A8%25EB%25A7%258C%25EB%2593%25A4%25EA%25B8%25B0%2fESP-1119_850.jpg&scw=-1&remake=Y" style="width: 850px; height: 2132px;" onerror="this.src='http://ai.esmplus.com/kit819/%EB%B2%A0%EB%A5%B4%EB%88%84%EC%9D%B4%EA%B3%84%EB%8B%A8%EB%A7%8C%EB%93%A4%EA%B8%B0/ESP-1119_850.jpg'; $(this).attr('onerror','');" />