 |
| |||
| stone quarry | |||
| quarry | |||
| stone pit | |||
| 石坑: 57 phrases in 16 subjects |
| Architecture | 1 |
| Aviation | 1 |
| Desert science | 6 |
| Economy | 1 |
| Electronics | 1 |
| Engineering geology | 8 |
| Environment | 1 |
| Fish farming pisciculture | 1 |
| General | 4 |
| Metallurgy | 1 |
| Mining | 1 |
| Mountaineering | 1 |
| Oil / petroleum | 2 |
| Soil science | 1 |
| Space | 1 |
| Technology | 26 |