지세도：가라앉아야만 들어올릴 수 있다
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도르래 세트를 사용하는 것이 더 좋습니다!안전에 너무 많은 투자를 할 필요가 없으며 생산에서도 여전히 결과를 얻을 수 있습니다. 제가 가장 두려워하는 점은 색상이 있는 레버를 사용하여 잘못된 지점을 선택했다는 것입니다.
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