您要查找的是不是：
- Ammonia is a colorless gas with strong smell. 氨是无色并有强烈气味的气体。
- Ammonia is a chemical substance. 氨是种化学物质。
- nitrite ammonia 亚硝酸氨
- Weekly testing for ammonia, nitrite, nitrate, turbidity, iodide, and strontium. 每周测试氨氮，亚硝酸盐，硝酸盐氮，浊度，碘，锶。
- Alkyl halides are reacted with sodium nitrite. 卤化烷与亚硝酸钠反应。
- In some ways, an hydrous ammonia is just as Safe to handle as gasoline. 在某种程度上，无水氨使用起来和汽油一样安全。
- Nitrite is used as a food additive. 亚硝酸盐被用作一种食物的附加剂。
- Tests of the manure showed a high ammonia content. 这种肥料经过化验表明氨的含量很高。
- Dilute the ammonia with water before you use it. 使用氨之前用水稀释它。
- To elevated levels of ammonia and nitrite in their water. Efficient biological filtration is very important. 高效的生化过滤是非常重要的。
- The smelling of ammonia brought himaround. 嗅氨使他恢复了意识。
- Nitrate was aerobically reduced to nitrite. 硝酸盐去氧后转化为亚硝酸盐。
- Nitrite is harmful to human material. 亚硝酸盐是一种对人体有害的物质。
- She diluted the ammonia with water. 她用水稀释氨水。
- Nitrite is an important food additive. 亚硝酸盐是重要的食品添加剂。
- Ammonia has a pungent, penetrating odor. 氨具有一种强烈的刺鼻的气味。
- The ammonia froze into bright crystals. 是氨冻结后生成的明亮晶体。
- Ammonia is a very reactive chemical. 氨是很活泼的化合物。
- They will react with ammonia to form amidines. 它们与氨反应形成脒。
- There are four major steps in ammonia synthesis. 氨的合成主要经过四道工序。
