 |
| |||
| plain roll | |||
| bare-barrel drum | |||
|
光滚筒 : 52 phrases in 12 subjects |
| Aviation | 1 |
| Chemistry | 5 |
| Drilling | 2 |
| Mechanics | 1 |
| Metallurgy | 6 |
| Plastics | 8 |
| Polygraphy | 3 |
| Roll stock | 1 |
| Shipbuilding | 1 |
| Space | 1 |
| Technology | 20 |
| Textile industry | 3 |
|
| |||
| plain roll | |||
| bare-barrel drum | |||
|
光滚筒 : 52 phrases in 12 subjects |
| Aviation | 1 |
| Chemistry | 5 |
| Drilling | 2 |
| Mechanics | 1 |
| Metallurgy | 6 |
| Plastics | 8 |
| Polygraphy | 3 |
| Roll stock | 1 |
| Shipbuilding | 1 |
| Space | 1 |
| Technology | 20 |
| Textile industry | 3 |