“emergency parachute”的概念、定义、翻译、参考文献-科学参考

单词	emergency parachute
释义	emergency parachute Encyclopedia 工学火箭弹射座椅释 emergency parachute救生伞飞机防护救生系统中，当飞机出现应急情况需要跳伞时，为拯救飞行人员生命、保证其安全着陆的救生工具。又称降落伞。
随便看	axiom of continuity axiom of countability axiom of countable choice axiom of denumerability axiom of dependent choice axiom of determinacy axiom of determinacy (AD) axiom of domination axiom of elementary sets axiom of empty set axiom of equality axiom of existence axiom of extensionality axiom of foundation axiom of free mobility axiom of identity axiom of inaccessibility axiom of incidence axiom of induction axiom of inequality axiom of infinity axiom of linear completeness axiom of mathematical induction axiom of motion axiom of neighborhoods

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