silty and fine sand layers
silty and fine sand layers
粉质和细砂层
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Nanjing silty clay with fine sand interbed is a sediment deposited alternately by silty clay and fine sand, appearing to be a "thousand layers cake";
南京粉质粘土与粉砂互层土为粉质粘土与粉细砂交互沉积，呈现“千层饼”状外貌；
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