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backing-ring
backing-ring
英
[backing-ring]
美
[backing-ring]
中文释义
[机] 垫环
单词分析
单词结构:
backing-ring
字母数:12
记忆提示
🎯 重点记忆:
单词拼写:backing-ring
核心含义:[机] 垫环
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更新时间:2026-03-15 16:21:56