1)  preliminary extraction
初采
1.
By analyzing the causes of abnormal gas outburst during the preliminary extraction in the working face with sharp inclined shield support, the author put forward the technical measures to eliminate the gas overrun.
通过分析急倾斜掩护支架初采期间瓦斯异常涌出的原因,针对性采取技术措施,消除瓦斯超限。
2)  period of beginning mining
初采期间
3)  initial mining and discharging
初采初放
1.
According to the particularity of initial mining and discharging work on plough mining face in Malan Coal Mine,this paper expounds the improvements for the techniques adopted in initial mining and discharging on the mining face.
根据马兰矿刨煤机工作面初采初放工作的特殊性,阐述了对工作面初采初放工艺的改进。
4)  period of beginning mining
初采期
补充资料:鞍山钢铁(集团)公司第二初轧厂1150初轧机轧制钢锭


鞍山钢铁(集团)公司第二初轧厂1150初轧机轧制钢锭


鞍山钢铁(集团)公司第二初轧厂1150初轧机轧制钢锭
说明:补充资料仅用于学习参考,请勿用于其它任何用途。