1. land slide:kilometer stone 里程碑 | land slide 坍方 | lateral clear distance of curve(平曲线)横净距
2. slide ; slip:滑坡 landslip; landslide | 坍方 slide ; slip | 蠕变 creep; crawl
3. 坍方
3. Slump:Slower traffic (vehicle) keep right 慢速车辆靠右标志 | Slump 坍方 | Slump Test 坍度试验
4. landslide;slip:1787 隧道漏水 water leakage of tunnel;tunnel leak | 1788 坍方 landslide;slip | 1789 地面塌陷 land yielding