| 1. | The anions produced are carbanions .
由此而产生的负离子，人们称之为碳负离子。 |
| 2. | We will present here a simple negative-ion scheme .
我们将在此介绍一下简单的负离子的体系。 |
| 3. | Positive ions drift downward, negative ions drift upward .
正离子向下漂移，负离子向上漂移。 |
| 4. | A negative ion is an atom which has gained one or more extra electrons .
获得一个或多个额外电子的原子称为负离子。 |
| 5. | In some way, positive and negative ions are developed in a thunderstorm .
在雷雨中，正离子和负离子以某种方式形成。 |
| 6. | As the two charge distributions separate, leaving positive and negative sheaths .
当两种电荷分布开始时，就留下正离子鞘和负离子鞘。 |
| 7. | In the region where the corona exists, large numbers of positive and negative ions are formed .
在存在电晕的区域，形成了大量正离子和负离子。 |
| 8. | The addition of hydrogen bromide involves the attachment of an anionic nucleophile in the final step .
溴化氢加成的最后一步，是负离子亲核试剂的附加。 |
| 9. | Aldehydes and other carbonyl compounds are most easily polymerized by essentially anionic mechanisms on account of the stability of alkoxide ions .
醛类和其他的羰基化合物，由于烷氧基离子的稳定性，最容易通过本质上是负离子的机理进行聚合。 |
| 10. | In general, delayed or distorted pulses, excessive plateau slope, raised working voltage, or failure to count at all are likely results of negative ion formation .
一般说来，延迟或畸变脉、过度的坪斜、工作电压的升高和不能计数，都可能是负离子形成的结果。 |
