从疑似三角洲沉积物中提取的光释光样本能提供给我们信息，滑坡沉积物何时发生，湖泊何时形成。
sample from the suspected delta deposit could give us information on when the landslide happened and the lake formed.
由大的湖泊产生的光的闪烁，证实泰坦的北半球存在表面液体。
A glint of light from a large lake confirms the presence of surface liquid in Titan's northern hemisphere.
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