A conical diffuser has been widely used in mechanical and mine engineering.

机械和矿山工程中广泛使用锥形渐扩管。

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Have a certification for the completion of safety equipment for mine engineering;

有矿山建设工程安全设施竣工验收合格证明文件；

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It is an active exploration in the new audit method and mode of mine engineering audit.

是对矿山工程审计这种新的审计方法和审计模式的积极探索。

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Meantime, because universities have cut back on courses in earth sciences, mineral geology and mine engineering, there is a severe shortage of workers.

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No doubt, many of those workers will come out of U.S. mining schools, touting degrees in Earth Sciences, Mineral Geology, or Mine Engineering.

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Chilean Health Minister Jaime Manalich said a medical official, a nutritional medic, a psychologist and an engineering expert in logistics from NASA will stay at the mine from Wednesday through Friday to help.

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