The conclusion is: the short term variability behavior provides a strong support to the thick accretion disk model of AGN.
这些讨论表明，活动星系核的短时标光变特征对厚吸积盘模型提供了强有力的支持。
Climate change is all about long term trends, which are hard to detect in a weather record which has very large natural variability.
气候变化是长期的，我们不能用一种天气情况来判断说有大的气候自然变异。
A rich content and system of knowledge, mature research methods in dendrohydrology provide accurate methods for studying long-term hydrologic variability at regional scale.
树木年代学丰富的内容和知识体系，成熟的研究方法，为区域尺度上研究水文变化提供了精确的方法。
Objective To study the effect of exercise testing on short term heart rate variability in patients with CHD.
目的探讨运动试验对冠心病患者短程心率变异性的影响。
The negative correlation between the interannual variability of IODM and that of SCS summer monsoon is significant during the warm phase of long-term trend but insignificant during the cool phase.
二者年际变化的负相关关系在长期趋势的冷位相期不显著，而在暖位相期显著。
Moreover, such a long-term variation is related to the low-frequency variability of the Pacific sea-air systems, and the causes are sophisticated.
而且，这种长期变化与太平洋海气系统成员的低频变化有相关性， 其变化成因是复杂的。
Moreover, such a long-term variation is related to the low-frequency variability of the Pacific sea-air systems, and the causes are sophisticated.
而且，这种长期变化与太平洋海气系统成员的低频变化有相关性， 其变化成因是复杂的。
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