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出典:Wikipedia
出典:『Wikipedia』 (2011/07/30 15:14 UTC 版)
A solid rocket or a solid-fuel rocket is a rocket with a motor that uses solid propellants (fuel/oxidizer). The earliest rockets were solid-fuel rockets powered by gunpowder; they were used by the Chinese in warfare as early as the 13th century and later by the Mongols, Arabs, and Indians.
Solid-fuel rocket