Documents LASL Subterrence Program - rapid excavation by rock melting, 1976, 89p

I 4-5979-SRdO I ..' .. ... : . , . * , * '. .3& ' .,.. .*. : . . p 775 UC-3 and UC-66c Issued: February 1977 Rapid Excavation by Rock Melting == LASL Subterrene…