国际不平整度指标
International roughness index
路面不平整度
Irregularity of pavement
Pavement roughness
pavement surface roughness PSR
蔗田不平度模拟研究
The Simulation of Cane Land Roughtness
场地平整
leveling fields
site formation
leveling up construction site
field leveling
field levelling
level the site
Lang leveling
building site planing
terrain leveling
场地平整参数
Unknotting parameter of field
场地平整优化设计
site leveling optimization design
地表不平度指数
Surface roughness parameter