| 1. | In order to measure these various cycles accurately, we need a basic time unit .
为了精确地量度这些变化周期，需要有一个基本的时间单位。 |
| 2. | The periodic characteristic of wind speed above and within a maize canopy
玉米冠层内外风速变化周期特征的研究 |
| 3. | The time series contains the obvious 2 - 7 years cycle in consistence with the enso cycle as well as the decadal cycle
全球陆地降水序列中有明显与2 - 7年enso周期相吻合的变化周期，也有年代际的周期变化。 |
| 4. | We found that the time series contains the obvious 2 - 7 years cycle in consistence with the enso cycle as well as the decadal cycle
指出全球降水序列中有明显的与2 - 7年enso周期相吻合的变化周期，也有年代际的变化。 |
| 5. | Meanwhile , the precipitation of different areas exhibits different cycle periods and different time of abrupt change
各区降水变化周期不同，黑龙江东北部存在16 18年的周期变化，其它地区存在10 14年的周期变化。 |
| 6. | The results show that there is a obvious 2 - 7 years cycle in consistence with the enso cycle as well as the decadal cycle
指出，全球陆地9 - 11月及各月降水序列有明显的与2 - 7年enso周期相吻合的变化周期，也有年代际变化。 |
| 7. | Of course , the ancient rishis were aware of the tropical , season - based cycles of northern and southern declination paths of the sun and used them also when appropriate
当然，古代的印度圣哲是知道热带的，在适当的时候也使用以季节为基础的太阳偏角（太阳赤纬）南比变化周期。 |
| 8. | With the harmonic analysis method , we can find that the heat storage anomaly in the scs has about 0 . 5 , 1 . 5 , 2 . 4 , 4 and 6 years period oscillations besides annual change
对此时间序列进行谐波分析可以看出，南海热含量异常除了具有显著的年变化周期外，还存在明显的0 . 5 、 1 . 5 、 2 . 4 、 4年和6年的变化周期。 |
| 9. | Through the preliminary analysis , we get the main conclusions as following : ( 1 ) analysis of period indicates that the summer rainfall of north china has change periods of about 2 years , 3 years , 6 years , 8 years and 18 years
经初步分析，主要得出以下结论： ( 1 )周期分析表明华北夏季降水存在2年左右、 3年左右、 6年、 8年和18年左右的变化周期。 |
