In the distribution of grain, it is epigranular, and the content of silt is more than 80%.

颗粒分布上，粒度均匀，粉粒含量高达80%以上；

youdao

In the distribution of grain, it is epigranular, and the content of silt is more than 80%.

颗粒分布上，粒度均匀，粉粒含量高达80%以上；

youdao