A1 time
查询英语单词中文释义、音标、发音和例句。
A1 time
英
[A1 time]
美
[A1 time]
中文释义
【天文学】原子时标(1 秒钟等于铯原子在零场中周期运动 9,192,631,770次)
单词分析
单词结构:
A1 time
字母数:7
记忆提示
🎯 重点记忆:
- 单词拼写:A1 time
- 核心含义:【天文学】原子时标(1 秒钟等于铯原子在零场中周期运动 9,192,631,770次)
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更新时间:2026-08-30 19:33:55