| 1. | The safe yield of a ground water reservoir was defined by meinzer(1920)as "the practicable rate of withdrawing water from it perennially for human use. "
地下水库的安全开采量，据迈因策（1920）所下的定义为：“供人们长期使用的实际可能的开采水量。” |
| 2. | Testing research of coal layer safe extraction in efflorescent oxygenized belts
风氧化带内煤层安全开采的试验研究 |
| 3. | Relying on t amp; s progress to realize safe mining under complex geological condition
依靠科技进步实现复杂地质条件的安全开采 |
| 4. | The safe coal - miming technology for shotfiring roofcoal caving faces in medium hard coal - beds
中硬煤层炮采放顶煤的安全开采技术 |
| 5. | Determination of local caving rule in steep coal seam repeated mining and safe mining height
急倾斜煤层复采抽冒规律与安全开采高度确定 |
| 6. | Safety mining technology without moving villages under loessial cave - houses in midwest of china
我国中西部黄土窑洞下不迁村安全开采技术 |
| 7. | Alignment grows wall to put coal back work face to adopt regional security to mine of study
走向长壁放顶煤回采工作面仰采区域安全开采的探讨 |
| 8. | Ventilation methods used in extinguishing large area fire assuring safety mining under fire area
扑灭大面积火灾保证火区下安全开采的通风方法 |
| 9. | Research on safety mining boundary of coal mining above limestone with pressurized water in gaokeng mine field
高坑井田承压水上采煤安全开采边界的研究 |
| 10. | Research on safely mining key technology of coalbed in zone of weathering and oxidation under thick loose bed
厚松散层下风氧化带内煤层安全开采关键技术的研究 |
