홍대용

5 Flips | 1 Magazine | 1 Like | 1 Following | @midrahong2014 | Keep up with 홍대용 on Flipboard, a place to see the stories, photos, and updates that matter to you. Flipboard creates a personalized magazine full of everything, from world news to life’s great moments. Download Flipboard for free and search for “홍대용”

Maersk Tankers - Spare parts via 3D printing?

김경수와 함께! on Twitter: "나치 치하에서 자행된 수많은 학살을 기억하십니까? 그 당시 침묵했던 양심의 고백..“나는 침묵했다” 지금 우리에게 똑같이 일어나고 있는 것은 아닌지요. “가만히 있으라”합니다. 그래서 “침묵”하시겠습니까?! http://t.co/J7QLVTAzIo"

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