“hard time maintenance of aircraft materiel”的概念、定义、翻译、参考文献-科学参考

单词	hard time maintenance of aircraft materiel
释义	hard time maintenance of aircraft materiel Encyclopedia 工学航空装备维修策略释 hard time maintenance of aircraft materiel航空装备定时维修通过事先计划的周期性维修工作，发现并排除航空装备潜在故障的航空装备维修策略。
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