例如，像土壤、砾石和松石那样的松软剥离物，可挖掘剥离。

For example, relatively soft material, such as soil, gravel, loose or weak rock, can be removed by digging.

youdao

例如，像土壤、砾石和松石那样的松软剥离物，可挖掘剥离。

For example, relatively soft material, such as soil, gravel, loose or weak rock, can be removed by digging.

youdao