Art
J-GLOBAL ID:202002258185725837   Reference number:20A0680910

Key technology of drilling in-seam directional borehole of 3000 m in underground coal mine

炭鉱坑井下の3000m順炭層指向ドリル掘削のキー技術【JST・京大機械翻訳】
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Material:
Volume: 47  Issue:Page: 1-7  Publication year: 2019 
JST Material Number: C2374A  ISSN: 1001-1986  CODEN: MDYKE3  Document type: Article
Article type: 原著論文  Country of issue: China (CHN)  Language: CHINESE (ZH)
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Drilling 
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