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hydrogen maser frequency standard
hydrogen maser frequency standard
英
[hydrogen maser frequency standard]
美
[hydrogen maser frequency standard]
中文释义
[核] 氢激射型原子频率标准
单词分析
单词结构:
hydrogen maser frequency standard
字母数:33
记忆提示
🎯 重点记忆:
单词拼写:hydrogen maser frequency standard
核心含义:[核] 氢激射型原子频率标准
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更新时间:2025-12-16 19:49:15