塌陷

• Management and control of goaf collapse in mine areas
  矿区采空塌陷的治理
• The economy transformation paths of aged mining cities
  循环经济对采煤塌陷地生态修复研究
• The roof collapsed under the weight of the snow
  屋顶在积雪重压下塌陷。
• Ice - rink roof collapse kills 10 in germany
  德一滑冰场屋顶塌陷十人死亡
• At this crisis the whole flooring suddenly gave way
  在这危急的关头，整个地板突然塌陷了。
• Some residents are concerned about their roofs caving in
  一些担心他们的房顶有塌陷的危险。
• Study on the mechanism of ground collapse in beiminghe iron mine
  北?河铁矿地表塌陷机理研究
• After the long rain the road caved in
  在长久的下雨后，道路塌陷了。
• Qixiashan hill in nanjing ; karst collapses ; causes of formation
  南京栖霞山岩溶地面塌陷成因
• The weight of the snow caused the roof of the cabin to cave in
  雪的重量使得小屋的屋顶塌陷。