“variable cross-section charge”的概念、定义、翻译、参考文献-科学参考

单词	variable cross-section charge
释义	variable cross-section charge Encyclopedia 工学装药结构释 variable cross-section charge变截面装药爆破工程中，炮孔直径沿炮孔长度方向存在变化的装药结构。使得部分长度炮孔直径大装药多，部分长度炮孔直径小装药少。
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