non-return flap valve

英 [non-return flap valve]
美 [non-return flap valve]

中文释义

[化] 止回阀

单词分析

单词结构：

non-return flap valve

字母数：21

记忆提示

🎯 重点记忆：

  • 单词拼写：non-return flap valve
  • 核心含义：[化] 止回阀

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更新时间：2026-02-02 18:30:30