由冰川和熔岩形成的侧脊叫冰碛。
These ridges formed by glaciers or lava flows are called moraines .
这些冰川类似于大的、漂浮的冰河。由冰川和熔岩形成的侧脊叫冰碛。
The ice streams are similar to large flowing rivers of ice . These ridges formed by glaciers or lava flows are called moraines .
侧冰碛