main shut-off valve

英 [main shut-off valve]
美 [main shut-off valve]

中文释义

总关闭阀

单词分析

单词结构：

main shut-off valve

字母数：19

记忆提示

🎯 重点记忆：

  • 单词拼写：main shut-off valve
  • 核心含义：总关闭阀

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更新时间：2026-03-15 10:29:58