 |
| |||
| calibration point | |||
| calibrating spot | |||
|
校准点 : 9 phrases in 3 subjects |
| Aviation | 2 |
| Oil / petroleum | 1 |
| Technology | 6 |
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