| 1. | They will react with ammonia to form amidines . 它们与氨反应形成脒。 |
| 2. | Ammonia has a pungent, penetrating odor . 氨具有一种强烈的刺鼻的气味。 |
| 3. | Peptide 7 had been a notable exception . 缩氨酸7号只是一个引人注目的例外。 |
| 4. | There are four major steps in ammonia synthesis . 氨的合成主要经过四道工序。 |
| 5. | The deamination is essentially stereospecific . 脱氨反应本质上是立体定向的。 |
| 6. | Ammonia is a very reactive chemical . 氨是很活泼的化合物。 |
| 7. | Aspartate is readily converted to asparagine . 天门冬氨酸易于转变成天门冬酰胺。 |
| 8. | Ammonia-air mixtures are quite difficult to ignite . 氨与空气的混合气体不易燃烧。 |
| 9. | Tryptophane also appears to be useful in easing pain . 色氨酸似乎还具有镇痛的作用。 |
| 10. | When the bacteria die, the plants absorb the ammonia . 当细菌死亡时,植物就吸收这种氨。 |