土基密实度
the density of the earth base
土基回弹模量
subgrade resilient modulus
rebound modulus of subgrade
subgrade resilient moduli
Subgrade soil resilient modulus
Modulus of Resilience of Roadbed
soil modulus of resilience
Embankment rebound modulus
Rebound modulus of sub-grad
土基强度分级
soil base′s intensity classifying
土基透水管
penetrable pipe on soil base