| 1. | It is a bleak look-out for the coal industry as the number of pit closures increases .
煤井关闭的数目日多，煤炭工业前景暗淡。 |
| 2. | On adjustment of economical structure of coal industry
浅谈煤炭工业经济结构的调整 |
| 3. | Analysis on china ' s economic operation of coal industry in
2006年煤炭经济运行评析 |
| 4. | Journal of huaibei coal industry teachers college
西南民族大学学报自然科学版 |
| 5. | On the development theory of coal and non - coal industry
煤与非煤发展理论初探 |
| 6. | Circular economy and development model of coal industry
循环经济与煤炭工业发展模式 |
| 7. | How to realize continuous development of coal industry
如何实现煤炭工业的可持续发展 |
| 8. | The coal industry is now barely half its former size
煤炭工业的规模仅是以前的一半。 |
| 9. | Discussion on vocational education of jiangxi coal industry
浅议江西煤炭职业技术教育 |
