| 1. | That there is a relationship of some kind between the moon and the rhythm of the tides was known even in ancient times .
甚至在古代，人们就知道在月球和潮汐的周期性变化之间，存在一定关系。 |
| 2. | In some cell lines there is a similar periodicity in changes of cell surface antigenicity or response to wheat germ agglutinin .
在某些细胞系中，细胞表面抗原性或对表胚凝集素的反应方面有相近似的周期性变化。 |
| 3. | Solar activity is periodic
太阳活动是有周期性变化的。 |
| 4. | Cyclical change of macro economy and its influence over banking industry
我国宏观经济周期性变化及其对银行业的影响 |
| 5. | Urinary estradiol and progesterone dynamics in captive asian elephants elephas maximus
圈养亚洲象尿液中雌二醇和孕酮含量的周期性变化 |
| 6. | The periodic variation in speed of a synchronous motor with respect to the current
（同步电动机的）速度偏差同步电机运行速度的周期性变化 |
| 7. | By transverse exposure , periodical modulation of refractive index is formed along the axis of optical fiber
制备原理是对光纤横向曝光，使光纤的折射率指数在轴向发生周期性变化。 |
| 8. | Through changing the interaction time , the degree of entanglement of the atom - cavity field hasa periodic change
随着时间的演化，原子与光场组成体系的纠缠度呈现出周期性变化规律。 |
| 9. | Expression of mitogen - activated protein kinase and its regulation by ley oligosaccharide in mouse endometrium during implantation
应用小鼠月经模型对子宫内膜血管周期性变化的形态学研究 |
| 10. | Floating rate note （ frn ） a bond where the coupon ' s interest rate is changed periodically in accordance to a specific market rate
浮动利率债券（ frn ）息票利率根据一定市场利率而发生周期性变化的债券。 |
