tight manhole cover

英 [tight manhole cover]
美 [tight manhole cover]

中文释义

密封式入井盖板;检查井密盖

单词分析

单词结构：

tight manhole cover

字母数：19

记忆提示

🎯 重点记忆：

  • 单词拼写：tight manhole cover
  • 核心含义：密封式入井盖板;检查井密盖

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更新时间：2026-02-05 05:06:56