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기계식 시계 작동 원리

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미 해밀턴 시계가 제작한 오래전의 시계 작동원리 동영상
기계식 시계의 구조와 기본적인 작동 원리를 이해하기 쉽게 소개함.

* 자 막 : 티피리포트(www.tpreport.com)

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노하우/스타일

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2025.9

일 월 화 수 목 금 토

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