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Date: 2000-10-13 13:26:32Piezoelectricity Drill bit Drilling Drill Oil well Research and development Technology Petroleum production Ultrasonic/sonic driller/corer | SEPTEMBER[removed]38th AnnualAdd to Reading ListSource URL: ndeaa.jpl.nasa.govDownload Document from Source WebsiteFile Size: 76,31 KBShare Document on Facebook |