종이 빨대 vs 플라스틱 빨대! 당신의 선택은? 친환경 빨대란 무엇인가? (한국건설기술연구원 박새롬 박사)
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Channel: 안될과학 Unrealscience
Views: 19,595
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Length: 20min 58sec (1258 seconds)
Published: Thu May 16 2024
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