gla
cia
tion
复数形式
glaciations
1
冰川作用, 冰河时期
the geological process involving the expansion and movement of glaciers, shaping landscapes through erosion, deposition, and the formation of distinctive glacial landforms
- The Great Lakes were formed during past glaciation periods when massive ice sheets shaped the landscape.
五大湖是在过去的冰川作用时期形成的，当时巨大的冰盖塑造了地貌。
- Glacial striations on bedrock surfaces provide evidence of the direction of ice flow during glaciation.
基岩表面的冰川擦痕提供了冰川作用期间冰流方向的证据。
- Glaciation in the Pleistocene epoch left behind moraines, creating undulating terrain across many regions.
更新世的冰川作用留下了冰碛，在许多地区形成了起伏的地形。
- The distinctive U-shaped valleys in mountainous areas often bear witness to the effects of glaciation.
山区独特的U形山谷常常见证了冰川作用的影响。
- Glaciation played a role in shaping the iconic Yosemite Valley in California.
冰川作用在塑造加利福尼亚标志性的优胜美地山谷中发挥了作用。
2
the state or condition of a region being covered by glaciers or ice as a result of glacial activity
- The valley's glaciation persisted for thousands of years.
- Glaciation left thick ice sheets across the landscape.
- Signs of past glaciation are evident in the striated rocks.
- Glaciation affected both flora and fauna in the area.
- The mountaintop remained in glaciation year-round.