通过锚、网、索组合支护在大断面煤巷中的应用，介绍了其支护参数的选择、施工工艺及支护效果。
Through combined bolting with wire meshes, beam and cable anchor applied in large section roadway, this paper introduces how to select support parameter, working craft and support result.
在双梁断面不同，双梁上荷重变化较大的情况下，采用分解组合法进行双梁式框架内力分析。
Such being the case of different double beam section and load change, adopting decomposition combination to making double bean frame internal force analyse.
莱钢炼钢厂应用高冷却强度结晶器技术，将原组合铜板式断面结晶器改造为高效管式结晶器。
The mould technology with high cooling intensity is adopted in the steel-making plant of Laigang to transform general built-up mould to high effective tube mould.
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