 |
| |||
| 损失频率 | |||
|
loss frequency : 20 phrases in 6 subjects |
| Electric machinery | 4 |
| Electronics | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 3 |
| Technology | 6 |
| Telecommunications | 5 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips