The main physical geographical processes are freeze-thaw action and fluviation at the small watershed of the Xinfenggou village.
冻融作用和流水作用是新丰沟小流域中最明显的自然地理过程。
Freeze-thaw action can effect in varying degrees to factors such as soil moisture, density, organic quality and soil machinery composition.
冻融作用对土壤水分、密度、有机质和土壤的机械组成等因素都有不同程度的影响。
The concrete durability under the compound action of freeze-thaw and abrasion is studied.
研究了冻融与磨耗复合作用下的混凝土耐久性能。
The concrete durability under the compound action of freeze-thaw and abrasion is studied.
研究了冻融与磨耗复合作用下的混凝土耐久性能。
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