边坡软弱层
slope soft and weak layer
多层软弱地基
multi-layered soft ground
软弱层性态
Characters of weak intercalation
软弱层状围岩
soft layered surrounding rock
PTFE基簿层材料
PTFE base thin-banding materials
半刚性基层材料
semi-rigid base material
semi-rigidity base material
Semi-rigid Base Course Material
半刚性面层材料
semi-rigid surface course material
Semi-rigidity material for cover