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• Smart, eco-friendly new battery made of seeds and pine resin pine resin 씨앗과 송진으로 만드는 똑똑하고, 친환경적인 새로운 배터리 September 29, 2014 Uppsala University Summary: 요약: Present-day have now come up with a highly interesting alternative. blog.naver.com · 2014.10.08