Can't create a new version from an unfrozen version.
无法从未冻结版本中创建新版本.
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Soil freezing temperature and unfrozen water content are important properties of frozen soilfreezing or frozen soils.
土壤冻结温度与未冻水含量是冻土的重要物理参数,影响因素多,关系复杂.
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When this is done, the water freezes first , leaving the salts in the remaining unfrozen solution.
局部冷冻法是使盐水部分冷冻,这时先行冷冻的是水, 盐则留在未曾冻结的液体中.
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