| 1. | An atom on an excited upper level can execute a downward transition not just spontaneously but also when photons of the radiation field surrounding the atomic interact with it .
处在较高的激发态上的原子不只可以自发地而且可以在它与原子系统周围辐射场的光子相互作用时发生向下的跃迁。 |
| 2. | Upper levels police station crime hong kong island regional headquarters
旧半山区警署(港岛总区刑事总部) |
| 3. | I ' d like a room on the upper level
我想要楼上的房间 |
| 4. | He ' s on the upper level , sir
他在楼上，长官 |
| 5. | She s on the upper level
他在上边！ |
| 6. | She ` s on the upper level
他在上边！ |
| 7. | Upper level lifetime
上能级寿命 |
| 8. | The northeastern area had an upper level of urbanization from modern china
摘要东北地区是近代以来中国城市化发展水平较高的区域。 |
| 9. | The result of lexical analysis will affect the performance of upper level application
词法分析结果的好坏将直接影响中文信息处理上层应用的效果。 |
| 10. | As warm moist air flows into a storm , it gets pushed up and twisted by upper level winds
暖湿气流汇入风暴后便被抬升，并被上层的旋风带动一起旋转。 |
