| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rocket firework ball can reduce waste of ball shells after setting off, reduce probability that audience is injured, and be inexpensively and safely manufactured. Ž<P>SOLUTION: A typical constitution of this rocket firework ball is composed of a bursting charge 3, stars 4 and the ball shells 5, 6, the ball shell 6 is constituted by overlapping a plurality of ball shells 6a, 6b while being easily decomposed. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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