 |
Terms for subject Explosives and Explosive Ordnance Disposal containing 保 护 层 | all forms | in specified order only
| Chinese | English |
| 保护层为了降低邻近煤层冲击矿压〈煤层气突出〉危险程度而先开采的煤层 | protective seam |
| 被保护层由于保护层的开采，冲击矿压、煤层气突出危险程度降低或消除的煤层 | protected seam |
| 被保护层由于保护层的开采，冲击矿压、煤层气突出危险程度降低或消除的煤层 | stress-relieved seam |