step valve

英 [step valve]
美 [step valve]

中文释义

级阀;阶式阀;层式阀

单词分析

单词结构：

step valve

字母数：10

记忆提示

🎯 重点记忆：

  • 单词拼写：step valve
  • 核心含义：级阀;阶式阀;层式阀

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更新时间：2026-01-29 20:10:43