Assume that the DLAs are progenitors of present disk galaxies, our model could predict most of the observed properties of DLAs, such as distributions of metallicity and HI column density.

• 假设盘状星系是DLA星系的前身，模型能很好地重现DLA星系的大多数观测特征，包括金属丰度分布，中性氢柱密度的分布。