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(20) 大断面掘進機RH-90および小断面掘進機RH-25Lについて

岡崎 伸哉
1987 Journal of the Mining and Metallurgical Institute of Japan  

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doi:10.2473/shigentosozai1953.103.1196_662 fatcat:b2hci7acynaphj6ozc2yaf25wq
lang:ja
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岡崎 伸哉. "(20) 大断面掘進機RH-90および小断面掘進機RH-25Lについて." Journal of the Mining and Metallurgical Institute of Japan 103.1196 (1987) 662-664