翻译成英文：从统计样本上我们不能完全确定每一个吸收体光变的原因想要进行确定的话需要针对每一个光谱进行细致的分析。例如从单个源不同次观测的光谱上如果出现1多个吸收系统协同光变2吸收线line-locking现象3……这样的特征则倾向于判断为ionization variations 原因。而如果……则倾向于判断为transiting 原因。

From the statistical sample, we cannot determine the exact cause of every absorption body's photometric variation. To make a definitive determination, a detailed analysis of each spectrum is required. For instance, if the spectra from multiple observations of a single source show features such as 1. coordinated photometric variations in multiple absorption systems, 2. line-locking phenomena in absorption lines, 3. ..., it tends to indicate ionization variations as the cause. On the other hand, if ..., it tends to suggest transit events as the cause