abandoned coal meaning in English
遗留煤
Examples
- Recovery technique of abandoned coal under wedge pillars
刀柱下弃置煤炭复采技术的应用 - Spontaneous combustion prevention of goaf abandoned coal from coal winning under the condition of thick coal seam slicing mining
厚煤层分层开采下分层工作面回采期间采空区遗煤自燃的防治 - It also discuses the necessity and possibility to transform the resource preponderance of the abandoned coal fly ash to the economic preponderance , find a way of new material industry and develop liaoning province vigorously with the new industry renovation
探讨了把废弃物粉煤灰资源优势转化为经济优势，走新材料产业的路子，以新产业革命振兴辽宁、振兴东北的必要性和可行性。