keystone type piston ring

英 [keystone type piston ring]
美 [keystone type piston ring]

中文释义

梯形活塞环

单词分析

单词结构：

keystone type piston ring

字母数：25

记忆提示

🎯 重点记忆：

  • 单词拼写：keystone type piston ring
  • 核心含义：梯形活塞环

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更新时间：2026-01-28 23:14:22