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step seal
step seal
英
[step seal]
美
[step seal]
中文释义
阶式密封
单词分析
单词结构:
step seal
字母数:9
记忆提示
🎯 重点记忆:
单词拼写:step seal
核心含义:阶式密封
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更新时间:2026-01-30 04:00:17