Products are widely used in coal, oil, automobile, engineering machinery and machine tools and other mining areas.
产品广泛用于煤矿、石油、汽车、工程矿山机械及机床等领域。
It provides the experiential and technical assistance for shaft sinking by freezing method in thick overburden of Juye coalfield and other mining areas.
本文总结了龙固副井的冻结施工工艺,为巨野煤田以及深厚表土的冻结施工提供了经验和技术保证。
Coal mining and other mining enterprises of various categories must update hydrological and geological data about their mine shafts to guard against water inrush or inundation.
要求煤矿和其它各类矿山企业,都要健全矿井水文地质资料,严防发生透水、淹井事故。
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