glaciation
柯林斯词典
1. N-VAR In geology, glaciation is the process by which the land is covered by glaciers. Glaciations are periods when this happens. 冰蝕期[技術]
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1. N-VAR In geology, glaciation is the process by which the land is covered by glaciers. Glaciations are periods when this happens. 冰蝕期[技術]