提倡新建、改扩建、整合技改矿井采掘机械化。

Promote new construction, renovation and expansion, integration of mining mechanization.

指出旋涡炉顶吹炼铜法应作为葫芦岛锌厂粗铜冶炼技改项目的首选工艺。

The Contop Process become first one for Copper Smetling innovation at Huludao zine smelter.

通过对智胜化工有限公司半水煤气栲胶脱硫改造的总结，从设备改造、工艺控制等方面简述了脱硫技改的措施和效果。

Through the summarization for semi-water coal gas tannin extract de-sulfur reformation in Zhisheng Chemical Engineering Company Ltd.