ammonia clock

英美

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- 氨钟
英英释义
Noun:

an atomic clock based on vibrational frequency of the nitrogen atom in the ammonia molecule
例句
临近单词

ammoniate ammonia ammonia absorption refrigerator Ammonia-containing wastewater Ammonia refrigeration machinery ammoniacal fertilizer poisoning ammonia and nitrogen wastewater ammonia-methanol coproduction ammonia nitrogen removing ratio ammonia absorption refrigeration Ammonia synthesis gas technology ammoniated ruthenium oxychloride

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