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다국어입력
1
Gyeong-Hoi Koo, Jae-Han Lee, | 대한기계학회 | 2004 ,
2
Hyun Tae Kim, Dae Gee Hun, Se Joon Kim, Won Mo Su, | 한국암반공학회 | 2004 ,
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US Department of Education [, ]
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Carfax Publishing Company [, ]
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