Focused laser beams to assist rock excavation : final report
Report FRA ORD and D ; 75-20
1974
Getr. Zählung [ca. 170 S.]
Ill., graph. Darst
Book
English
Focused Laser Beams to Assist Rock Excavation
NTIS | 1974
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|Study on New Rock Excavation Method by Using Laser
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|