pyrotechnic composition for signaling

英 [pyrotechnic composition for signaling]
美 [pyrotechnic composition for signaling]

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单词结构：

pyrotechnic composition for signaling

字母数：37

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  • 单词拼写：pyrotechnic composition for signaling
  • 核心含义：[化] 信号剂

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更新时间：2026-02-05 06:48:43