 |
| |||
| middling | |||
| medium (复数: media) | |||
| medium sand | |||
| medium granular sand | |||
| 中砂: 76 phrases in 14 subjects |
| Architecture | 3 |
| Bridge construction | 1 |
| Desert science | 2 |
| Electronics | 1 |
| Engineering geology | 1 |
| General | 8 |
| Geology | 3 |
| Geophysics | 6 |
| Metallurgy | 3 |
| Mining | 2 |
| Oil / petroleum | 7 |
| Shipbuilding | 1 |
| Steel production | 1 |
| Technology | 37 |