second delay electric detonator

[second delay electric detonator]
[second delay electric detonator]

中文释义

秒延期电雷管

单词分析

单词结构:

second delay electric detonator

字母数:31

记忆提示

🎯 重点记忆:

  • 单词拼写:second delay electric detonator
  • 核心含义:秒延期电雷管