名词
中文翻译：氨
同义词：
['ammonia', 'amine']
例句：
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1. The soil needs to be amended with ammonia to improve its fertility.
土壤需要用氨来改良以提高肥力。
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2. Ammonium chloride is used as a preservative in food storage.
氯化铵用作食品储存的防腐剂。
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3. The chemical reaction between ammonium and water produces ammonia gas.
氨与水发生化学反应产生氨气。