Through plenty of historical materials, from function of the origin of catapult, type of bow, balls of catapult and its skills, catapult martial skills are textual studied.
征引大量历史资料，从弹射溯源、弹弓的形制、弹弓的弹丸、弹弓的技法及弹弓的功用等几个方面对弹射武技予以考证论述，力图对弹射武技有一个较为全面的认。
Equipped with these features, catapult and launch of UAV are the premise and guarantee of initiative realization of UAV electromagnetic catapult technology.
无人机弹射起飞具有的这些特点，是无人机率先实现电磁弹射的前提与保障。
Equipped with these features, catapult and launch of UAV are the premise and guarantee of initiative realization of UAV electromagnetic catapult technology.
无人机弹射起飞具有的这些特点，是无人机率先实现电磁弹射的前提与保障。
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