岛状多年冻土是大片连续多年冻土退化的边缘地带，具有平面上不连续特点。
Patchy permafrost is the edge of vast and continuous permafrost zone which is degrading, it is discontinuous horizontally.
岛状多年冻土是大片连续多年冻土退化的边缘地带，具有平面上不连续特点。
Patchy permafrost is the edge of vast and continuous permafrost zone which is degrading, it is discontinuous horizontally.
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