Art
J-GLOBAL ID:201602015904057430   Reference number:58A0070548

Downhole Power Speeds Drilling.

坑底への動力設置による掘さぐ速度の上昇
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Material:
Volume: 56  Issue: 46  Page: 172,174,176,178,181  Publication year: 1958
JST Material Number: D0239A  ISSN: 0030-1388  CODEN: OIGJA   Document type: Article
Country of issue: United States (USA) 
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