 |
| |||
| 一次并捻丝线 | |||
| single silk: 18 phrases in 9 subjects |
| Aviation | 1 |
| Business | 2 |
| Electric machinery | 1 |
| General | 6 |
| Geophysics | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Technology | 2 |
| Textile industry | 3 |
|
| |||
| 一次并捻丝线 | |||
| single silk: 18 phrases in 9 subjects |
| Aviation | 1 |
| Business | 2 |
| Electric machinery | 1 |
| General | 6 |
| Geophysics | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Technology | 2 |
| Textile industry | 3 |