| 1. | I send him periodic summaries .
我给他送定期的情况简报。 |
| 2. | The mathematicians turned to culling periodic solutions .
数学家们转而去挑选周期解。 |
| 3. | These arrangements are subject to periodic reviews ...
这几项安排每隔一定时间须予复查。 |
| 4. | Periodic local catastrophes reduce populations .
周期性的局部地区的灾变降低了种群的数量。 |
| 5. | Silicon is one of the most studied elements in the periodic table .
硅是周期表中最熟悉的元素之一。 |
| 6. | The periodic buckling leaves the fibre in a waved conformation .
周期性的弯折在纤维中造成波形构成。 |
| 7. | The idea of time is essentially an idea of periodic repetition .
时间的概念本质上是一种周期性的重复的观念。 |
| 8. | The harmonic oscillator is an exceptionally important example of periodic motion .
谐振子在周期运动中是特别重要的。 |
| 9. | We can elaborate the electronic configuration for the atoms in the periodic chart .
我们能够精心安排周期表中原子的电子排布。 |
| 10. | Some commercial laboratories use periodic nitrate nitrogen tests as guides .
许多商业性的试验室已应用定期的硝态氮分析作为指导。 |
