| 氮 | nitrogen (chemistry) | 
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| 氮化 | nitridize; nitriding; azotizing; azotization; nitrogen hardening; nitridation | 
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| 氮化处理 | nitrogen treatment | 
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| 氮化物 | nitride; nitrifier; nitrides; nitrid | 
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| 氮原子 | nitrogen atom | 
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| 氮循环 | cycle of nitrogen; nitrogen cycle; carbonnitrogen cycle | 
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| 氮杂 | aza- | 
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| 氮气 | nitrogen | 
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| 氮氧化物 | nitrogen oxide | 
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| 氮肥 | nitrogenous fertilizer; nitrogen fertilizer; nitrogenous manure | 
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| 氮肥料 | nitrogenous fertilizers | 
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| 氮芥 | nitrogen mustard; mustargen; chlormethine; mustine | 
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| 氮芥气 | nitrogen mustard | 
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| 氮血 | azotemia; nitraemia | 
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| 氮血症 | [Medicine] azotemia; nitremia | 
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| 氮麻醉 | rapture of the deep; nitrogen narcosis | 
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