It has become a common understanding that frost action is a kind of weathering process, which considerably changes engineering properties of soils due to cryogenical actions.
冻融过程中土结构受冷生作用的影响，可导致土的工程性质发生变化。
Looking for a new sizing material that substitutes PVA has become our common understanding, because PVA causes serious pollution and destruction to environment.
由于PV A对环境造成严重的污染和破坏，寻找一种新的浆料来替代PVA已经成为大家的共识。
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