During the brief summer, a thin layer of frozen soil thaws at the surface.
短短的夏季里，表面很薄的一层冻土融化了。
The study advanced the evidence for building the damage theory of frozen soil.
研究结果是建立冻土损伤理论的前提和基础。
Seasonal frozen soil is a special soil water system where ice and water coexist.
季节性冻土是一种冰水共存的特殊土水体系。
Much of the soil is usually still frozen during peak run-off.
大部分的土壤在径流高峰期仍然是冻结的。
Much of the soil is usually still frozen during peak run-off.
大部分的土壤在径流高峰期仍然是冻结的。
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