File:4차 산업혁명.jpg
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4차_산업혁명.jpg (547 × 273 pixels, file size: 141 KB, MIME type: image/jpeg)
출처: 미래창조과학부
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Date/Time | Dimensions | User | Comment | |
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current | 07:36, 29 November 2019 | 547 × 273 (141 KB) | PE가즈아 (talk | contribs) | 출처: 미래창조과학부 |
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