The ore quality control on the mining site is key to the ore quality control for the whole mine.
采场矿石质量管理是整个矿山矿石质量管理的核心。
Letter the Department of Public Works cut iron ore importers should be quality control in the 5-10.
工信部应当大幅削减铁矿石进口商资质，控制在5到10家。
The embankment is filled with the iron ore flaked rock in A01 segment of the flood control for Qian 'an city area near the Luanhe River, how to control the construction quality is the key.
滦河迁安市区段防洪工程第三期工程A 01标段采用天然级配铁矿剥岩土作为筑坝材料，如何控制施工填筑质量是关键。
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