1) small coalpit developing
小煤窑开采
1.
Based on the field investigation in Liudaogou watershed,Jin Shaan Inner Mongolia coalfield,the influence of the small coalpit developing on the environment and soil and water conservation has been analysed.
在野外考察的基础上，着重就神木六道沟小流域小煤窑开采对环境与水土保持的影响进行了分析，指出小煤窑开采对振兴乡村经济，改善村民生活功不可没。
2) mining of coalpit
小窑开采
1.
Based on the geological environment of Sifangshan coal mine and mining practice,and through analyses on ratio between mining depth and mining thickness and lithologic quality of roof,and counting on mining thickness and width of goaf,consider that mining of coalpit no influence for surface deformation.
根据四方山煤矿所处的地质环境及开采的实际特征,通过对其采深采厚比和顶板岩层质量的分析,采矿厚度、采空段宽度的计算,得出该区小窑开采对地表变形无影响的结论。
4) coal mining in small colliery
小煤矿开采
5) the damaged area by small coal mine grabbing exploitation
小煤窑抢采破坏区
6) Small-pillar mining technology
小煤柱开采技术
补充资料：煤窑
1.用手工开采的小型煤矿。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条