释义
An artificial firework consisting of a cylindrical case of
paper or metal filled with a composition of combustible ingredients, as
niter, charcoal, and sulphur, and fastened to a guiding stick. The
rocket is projected through the air by the force arising from the
expansion of the gases liberated by combustion of the composition.
Rockets are used as projectiles for various purposes, for signals, and
also for pyrotechnic display.
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