cementing it Dee SL (a) Recessed | Detona- || tors at ‘It may be possible to modify the design of the pit and active Hydro-. material so as to obtain hydrodynamic improvements leading to higher cynamic , : . Im- . compressions, at which considerable gains could be achieved from provement s~—~ Exter- external initiation,_| | eres cciseRTSANION RT Tnitia~ Sion re sort nal ureEton: nitrate a7

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