primary sewage sludge

英 [primary sewage sludge]
美 [primary sewage sludge]

中文释义

原下水污泥

单词分析

单词结构：

primary sewage sludge

字母数：21

记忆提示

🎯 重点记忆：

  • 单词拼写：primary sewage sludge
  • 核心含义：原下水污泥

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更新时间：2026-03-25 05:29:07