小煤窑 meaning in Chinese

small coal pit cave dwelling brothel
small-scale coal mine

He has to work in coal pit
他必须到小煤窑背煤。
Brief analysis on outburst prevention in drivage and gas control in winning area
采区上山过小煤窑采空区通风瓦斯管理
Analysis of the method of underground development across the destructive zone resulted by local small mines
穿越小煤窑破坏区开拓方式分析
Today he looks clean and attractive that ' s because the small coal pit has been closed and now , he lost his job
今天他看上去很干净、很光鲜，是因为小煤窑已经被整顿关闭，他无活可干。
But because the coal market supply exceeds demand for a long time of area of the northeast and the inner mongol east , in addition the influence of some small coal pit unfair competitions and restriction of railway transportation , production capacity of hcc for a long time remains seriously surplus . enterprise resource and cost advantage can not be given full play to
但由于东北及内蒙古东部地区长期以来煤炭市场供大于求，加之一些小煤窑不公平竞争的影响和铁路运力的制约，霍煤集团公司长期以来生产能力严重剩余，企业资源和成本优势没有能够得到充分发挥。