The undisturbed soil samples, including clay, silty clay, silt, sand, muck and mucky soil, come from about ten different legions in China.
试验土类包括粘土、粉质粘土、粉土、砂土、淤泥和淤泥质土，土样来自国内十余个不同地区。
The undisturbed soil samples, including clay, silty clay, silt, sand, muck and mucky soil, come from about ten different legions in China.
试验土类包括粘土、粉质粘土、粉土、砂土、淤泥和淤泥质土，土样来自国内十余个不同地区。
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