由于风化程度不同，残积土在不同深度和地区出现的物质成分和结构特征而有差异。
The difference in composition and texture is due to the difference in depth of weathering and geographical position.
残积土作为一种特殊土，其工程地质性质往往因母岩类型、地质环境及风化条件的不同差异很大。
Residual soil is one of special soils, of which engineering geological property is usually different because of its difference in origin of rock, geological environment and weathering condition.
红土是在亚热带、热带湿热气候条件下风化形成的一类区域性残积土。
Laterine is a weathering and leaching residual soil under sub-tropical and tropical climate.
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