名词
中文翻译：初级高爆炸药
同义词：
['primary explosive', 'primary explosives']
例句：
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1. Themilitary uses this type of explosive for itsprimary purpose.
军队使用这种炸药主要是为了它的原始目的。
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2. The primary explosive was used inthe construction of the bridge.
这种初级炸药被用于桥梁的建设。
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3. The primary explosive was responsiblefor the explosion that killed several people.
这种初级炸药导致了那次爆炸，造成几人死亡。