Optical variability is a common property of AGNs, Which provides a potentially powerful tool to probe the physics of AGNs.
光变是活动星系核（AGN）的共同特征， 光变规律的研究已成为人类探索活动星系核物理的有力手段。
In this paper, using disk-instability model and starburst model, the AGN optical variability and spectral slope variability are simulated and confronted with observations.
本文中我们利用盘不稳定模型和星爆模型的基本思想，模拟活动星系核在光学波段的光度和光谱斜率变化，并将模拟的结果和观测进行比较。
In addition, an analysis was made on the relationship between the temporal variability of bio-optical properties and the physical parameters.
在此基础上，讨论了生物-光学变异性与海洋物理过程的关系。
The results show that these two models can qualitatively explain the AGN variability in the optical band.
结果表明：这两种模型是定性解释活动星系核光学波段光变的合理模型。
The results show that these two models can qualitatively explain the AGN variability in the optical band.
结果表明：这两种模型是定性解释活动星系核光学波段光变的合理模型。
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