self-expanding piston ring

英 [self-expanding piston ring]
美 [self-expanding piston ring]

中文释义

自动伸缩活塞环

单词分析

单词结构：

self-expanding piston ring

字母数：26

记忆提示

🎯 重点记忆：

  • 单词拼写：self-expanding piston ring
  • 核心含义：自动伸缩活塞环

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更新时间：2026-01-31 06:16:45