| 摘要 |
A rock breaking cartridge ( 10 ) which includes a tubular body ( 12 ), spaced inner and outer second caps ( 14 and 16 ) inside the tubular body ( 12 ), a propellant ( 20 ) inside the tubular body ( 12 ) between the caps ( 14 and 16 ), a radially expansible stemming device ( 30 ) inside the tubular body ( 12 ) spaced from the inner cap ( 14 ), and a filler ( 34 ) between the inner cap ( 14 ) and the stemming device ( 30 ). |
