Art
J-GLOBAL ID:201602017413359560   Reference number:58A0071163

Active Search Continues to Improve Drilling Techniques.

さく井技術の改善について積極的な研究進む(衝撃,振動,タービン式さく井について)
Material:
Volume: 29  Issue:Page: 54-55,68-69  Publication year: 1958 
JST Material Number: E0403A  ISSN: 0043-8847  CODEN: WOPTA  Document type: Article
Country of issue: United States (USA) 
JST classification (1):
JST classification
Category name(code) classified by JST.
Terms in the title (4):
Terms in the title
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