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单词
ammonia clock
释义
ammonia clock
英?[??m??nj? kl?k]
美?[??monj? klɑk]
释义
氨钟
英英释义
Noun
1. an atomic clock based on vibrational frequency of the nitrogen atom in the ammonia molecule
行业词典
天文学
氨钟???以氨分子为工作物质的分子钟。???
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更新时间:2025/6/18 4:22:59