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云南锡业公司露天砂矿采场,每年都有大量采空区有待处理。公司根据采空区的不同情况,因地制宜开展了复垦造田的试验工作,取得了较好的效果。
Yunnan Tin Company opencast ore stope, a large number of goaf every year to be processed. According to the different conditions of the mined-out area, the company carried out experimental work of reclamation and land reclamation according to local conditions and achieved good results.