The World Bank’s Vice-President for South Asia, Praful Pratel, says money has started to flow into local economies and housing grants are supporting the rebuilding of permanent shelters for people.
The supporting of permanent openings has been a difficult problem in production and technique for many years.
永久洞室的支护方法，多年来一直是松软岩层矿井生产的技术难关。
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By certain construction method, footing groove excavation and the constructions of permanent structures will be completed under the protection of the supporting structures.