contamination seal

英 [contamination seal]
美 [contamination seal]

中文释义

防污染密封

单词分析

单词结构：

contamination seal

字母数：18

记忆提示

🎯 重点记忆：

  • 单词拼写：contamination seal
  • 核心含义：防污染密封

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更新时间：2026-03-22 11:51:05