step-type
| single mode
| step-type | |
| tech. | 步进式的 |
| single mode | |
| tech. | 单模态 |
| telecom. од. | 单模 |
| single-mode | |
| avia. | 单模 |
| |||
| 步进式的 | |||
|
step-type : 53 phrases in 11 subjects |
| Chemistry | 2 |
| Compressors | 1 |
| Computer numerical control | 1 |
| Drilling | 3 |
| Electronics | 2 |
| Engineering geology | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Space | 2 |
| Technology | 38 |