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

例如，像土壤、砾石和松石那样的松软剥离物，可挖掘剥离。

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This paper uses a new rotary penetration instrument independently developed by Xi'an University of Technology, it shows a unique advantage in soft rock and other hard material layer.

运用西安理工大学自主研发的新型旋转触探仪，针对软岩等硬质地层进行旋转触探试验，显示了独特的优越性。

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