介绍了煤矿塌陷坑的治理途径和复垦的意义。
The significance of dealing coal mine collapse pit and reclamation of land are introduced.
长沙市湘江路中段的保利国际广场附近发生道路塌陷事故，塌陷坑面积约有30平米左右。
The cave-in, near the Poly International Plaza along the central section of Xiangjiang Road in the provincial capital Changsha, created a 30-square-meter pit on the road.
2002年，美国奥兰多：紧急救援人员站在一个巨大塌陷坑附近。这个坑出现在伍德·希尔公寓内，迫使数十名居民撤离公寓。
Orlando, US, 2002: Emergency personnel stand by a giant sinkhole that opened up inside the Woodhill apartment complex, forcing dozens of residents to evacuate their apartments.
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