@article{yjycl2108474148822843394, title = {盘州保庆井田9号煤层厚度及煤质特征分析}, author = {余娇}, journal = {冶金与材料}, year = {2023}, number = {6}, pages = {184--186}, issn = {2096-4854}, url = {https://journal.zazhitong.com/yjycl/articles/2108474148822843394}, }