 |
| |||
| 垫块 | |||
| 止动楔 | |||
| chock block: 10 phrases in 5 subjects |
| Automobiles | 2 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 5 |
| Rail transport | 1 |
| Technology | 1 |
|
| |||
| 垫块 | |||
| 止动楔 | |||
| chock block: 10 phrases in 5 subjects |
| Automobiles | 2 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 5 |
| Rail transport | 1 |
| Technology | 1 |