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氮(dàn)🔊 Back
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基本字义

dàn(ㄉㄢˋ)

1、一种气体元素,无色、无臭、无味,化学性质不活泼。是植物营养的重要成分之一:氮肥

Unicode: 6C2E Origin: https://mzidian.911cha.com/zi6c2e.html