double-return valve

英 [double-return valve]
美 [double-return valve]

中文释义

双回流阀

单词分析

单词结构：

double-return valve

字母数：19

记忆提示

🎯 重点记忆：

  • 单词拼写：double-return valve
  • 核心含义： 双回流阀

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更新时间：2026-03-16 14:34:59